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story
noun
-
story
,
stories
one
level
of
a
building
•
The
new
office
tower
is
twenty
stories
high
.
The
new
office
tower
is
twenty
stories
high
.
•
Our
apartment
is
on
the
tenth
story
,
so
the
view
is
amazing
.
Our
apartment
is
on
the
tenth
story
,
so
the
view
is
amazing
.
Adopted
in
American
English
in
the
19th
century
,
likely
from
earlier
sense
of
“
stage
”
or
“
history
”
layers
,
influenced
by
the
narrative
sense
.
noun
-
story
,
stories
a
spoken
or
written
account
of
real
or
imaginary
events
told
to
entertain
,
inform
,
or
explain
•
Grandpa
loves
telling
the
story
of
how
he
met
Grandma
during
the
war
.
Grandpa
loves
telling
the
story
of
how
he
met
Grandma
during
the
war
.
•
The
news
article
included
a
moving
human-interest
story
about
a
rescued
dog
.
The
news
article
included
a
moving
human-interest
story
about
a
rescued
dog
.
Middle
English
“
storie
”,
from
Anglo-Norman
and
Old
French
“
estorie
”,
originally
meaning
“
history
”,
later
“
narrative
”.
storey
noun
one
of
the
horizontal
levels
of
a
building
•
Their
new
home
is
a
charming
three-storey
cottage
.
Their
new
home
is
a
charming
three-storey
cottage
.
•
The
office
block
rises
to
twelve
storeys
above
the
street
.
The
office
block
rises
to
twelve
storeys
above
the
street
.
Variant
spelling
influenced
by
Old
French
“
estorie
.”
The
‘
e
’
was
kept
in
British
English
while
American
English
simplified
it
to
“
story
.”
history
noun
-
history
,
histories
the
study
of
past
events
and
how
they
shaped
people
and
societies
•
At
school
,
Mia
enjoys
history
because
she
loves
learning
about
ancient
civilizations
.
At
school
,
Mia
enjoys
history
because
she
loves
learning
about
ancient
civilizations
.
•
The
professor
specializes
in
medieval
history
and
travels
to
old
castles
for
research
.
The
professor
specializes
in
medieval
history
and
travels
to
old
castles
for
research
.
From
Latin
"
historia
"
via
Old
French
,
meaning
inquiry
or
narrative
of
past
events
.
noun
-
history
,
histories
all
the
events
that
happened
in
the
past
•
The
sleepy
village
has
a
long
history
dating
back
to
Roman
times
.
The
sleepy
village
has
a
long
history
dating
back
to
Roman
times
.
•
Painters
often
find
inspiration
in
the
city
’
s
rich
history
.
Painters
often
find
inspiration
in
the
city
’
s
rich
history
.
noun
-
history
,
histories
a
written
or
spoken
record
that
describes
past
events
•
She
wrote
a
history
of
her
family
using
old
letters
and
photos
.
She
wrote
a
history
of
her
family
using
old
letters
and
photos
.
•
The
documentary
is
a
fascinating
history
of
jazz
music
.
The
documentary
is
a
fascinating
history
of
jazz
music
.
noun
-
history
,
histories
a
state
of
being
finished
,
defeated
,
or
no
longer
important
,
especially
in
informal
speech
•
Don
’
t
worry
about
that
scratch
on
the
car
—
after
the
paint
job
,
it
’
s
history
.
Don
’
t
worry
about
that
scratch
on
the
car
—
after
the
paint
job
,
it
’
s
history
.
•
“
Touch
my
sandwich
again
and
you
’
re
history
,”
joked
Carlos
to
his
friend
.
“
Touch
my
sandwich
again
and
you
’
re
history
,”
joked
Carlos
to
his
friend
.
doctor
noun
a
person
whose
job
is
to
treat
sick
or
injured
people
•
The
doctor
listened
to
my
heartbeat
with
a
stethoscope
.
The
doctor
listened
to
my
heartbeat
with
a
stethoscope
.
•
If
you
feel
dizzy
,
you
should
see
a
doctor
as
soon
as
possible
.
If
you
feel
dizzy
,
you
should
see
a
doctor
as
soon
as
possible
.
From
Latin
‘
doctor
’
meaning
‘
teacher
’,
originally
one
who
is
qualified
to
teach
,
later
used
for
medical
practitioners
.
noun
someone
who
has
earned
the
highest
university
degree
in
a
particular
subject
•
After
years
of
research
,
Maria
finally
became
a
doctor
of
physics
.
After
years
of
research
,
Maria
finally
became
a
doctor
of
physics
.
•
The
professor
is
a
doctor
in
medieval
history
.
The
professor
is
a
doctor
in
medieval
history
.
Extension
of
the
Latin
sense
‘
teacher
’
to
anyone
awarded
the
highest
academic
degree
by
a
university
.
verb
to
give
medical
treatment
to
a
person
or
an
animal
•
Paramedics
doctored
the
injured
cyclist
until
the
ambulance
arrived
.
Paramedics
doctored
the
injured
cyclist
until
the
ambulance
arrived
.
•
She
gently
doctored
the
kitten
’
s
paw
with
antiseptic
cream
.
She
gently
doctored
the
kitten
’
s
paw
with
antiseptic
cream
.
Verb
sense
developed
from
the
noun
‘
doctor
’
meaning
a
medical
practitioner
.
verb
to
change
something
in
order
to
deceive
people
or
to
make
it
seem
better
than
it
really
is
•
The
journalist
noticed
that
someone
had
doctored
the
financial
records
.
The
journalist
noticed
that
someone
had
doctored
the
financial
records
.
•
He
was
fired
for
doctoring
the
results
of
the
experiment
.
He
was
fired
for
doctoring
the
results
of
the
experiment
.
Figurative
use
from
the
idea
of
a
doctor
‘
improving
’
or
‘
fixing
’
something
,
later
taking
on
a
sense
of
dishonest
alteration
.
factor
noun
something
that
has
an
influence
on
or
causes
a
particular
result
•
Bad
weather
was
a
major
factor
in
the
delay
of
their
flight
.
Bad
weather
was
a
major
factor
in
the
delay
of
their
flight
.
•
Price
is
the
biggest
factor
for
many
students
buying
a
laptop
.
Price
is
the
biggest
factor
for
many
students
buying
a
laptop
.
noun
a
whole
number
that
divides
another
number
exactly
•
Three
is
a
factor
of
twelve
.
Three
is
a
factor
of
twelve
.
•
The
students
listed
every
factor
of
36
on
the
board
.
The
students
listed
every
factor
of
36
on
the
board
.
verb
-
factor
,
factoring
,
factors
,
factored
to
include
something
when
making
a
calculation
or
decision
,
usually
with
“
in
”
or
“
into
”
•
We
must
factor
shipping
costs
into
the
budget
.
We
must
factor
shipping
costs
into
the
budget
.
•
Did
you
factor
the
traffic
into
your
travel
plan
?
Did
you
factor
the
traffic
into
your
travel
plan
?
verb
-
factor
,
factoring
,
factors
,
factored
to
resolve
a
number
or
algebraic
expression
into
its
factors
•
Please
factor
the
quadratic
equation
on
the
board
.
Please
factor
the
quadratic
equation
on
the
board
.
•
They
quickly
factored
45
into
5
and
9
.
They
quickly
factored
45
into
5
and
9
.
noun
a
substance
such
as
a
gene
or
protein
that
produces
a
particular
biological
effect
•
Insulin
is
a
crucial
factor
in
regulating
blood
sugar
.
Insulin
is
a
crucial
factor
in
regulating
blood
sugar
.
•
The
researcher
studied
a
growth
factor
that
makes
cells
divide
faster
.
The
researcher
studied
a
growth
factor
that
makes
cells
divide
faster
.
noun
a
business
agent
or
company
that
buys
another
firm's
invoices
and
collects
the
payments
•
The
company
sold
its
invoices
to
a
factor
to
get
cash
quickly
.
The
company
sold
its
invoices
to
a
factor
to
get
cash
quickly
.
•
A
factor
charges
a
fee
before
advancing
money
to
the
supplier
.
A
factor
charges
a
fee
before
advancing
money
to
the
supplier
.
store
noun
a
place
where
you
can
go
to
buy
things
•
After
school
,
Mia
walked
to
the
store
to
buy
some
snacks
.
After
school
,
Mia
walked
to
the
store
to
buy
some
snacks
.
•
The
new
store
on
Main
Street
sells
organic
vegetables
.
The
new
store
on
Main
Street
sells
organic
vegetables
.
noun
an
amount
of
something
that
is
kept
so
it
can
be
used
later
•
The
squirrels
gathered
a
store
of
nuts
for
the
winter
.
The
squirrels
gathered
a
store
of
nuts
for
the
winter
.
•
Grandma
always
keeps
a
good
store
of
canned
food
in
the
pantry
.
Grandma
always
keeps
a
good
store
of
canned
food
in
the
pantry
.
verb
-
store
,
storing
,
stores
,
stored
to
put
something
in
a
place
so
you
can
use
it
later
•
Please
store
the
cheese
in
the
refrigerator
.
Please
store
the
cheese
in
the
refrigerator
.
•
He
stored
important
documents
in
a
locked
drawer
.
He
stored
important
documents
in
a
locked
drawer
.
verb
-
store
,
storing
,
stores
,
stored
to
keep
electronic
information
in
a
computer
so
it
can
be
used
later
•
This
app
can
store
your
passwords
securely
.
This
app
can
store
your
passwords
securely
.
•
The
GPS
device
stores
the
route
history
.
The
GPS
device
stores
the
route
history
.
director
noun
a
person
who
leads
and
manages
a
department
,
project
,
or
organization
,
making
important
decisions
and
guiding
its
work
•
After
years
of
hard
work
,
Maria
was
promoted
to
director
of
marketing
.
After
years
of
hard
work
,
Maria
was
promoted
to
director
of
marketing
.
•
The
director
called
an
early-morning
meeting
to
set
new
goals
for
the
team
.
The
director
called
an
early-morning
meeting
to
set
new
goals
for
the
team
.
from
Latin
dirigere
“
to
guide
,
arrange
,”
through
Old
French
directeur
“
one
who
guides
”
noun
a
person
who
is
in
charge
of
making
a
film
,
play
,
or
television
program
,
guiding
actors
and
crew
to
create
the
final
production
•
The
director
shouted
"
Action
!"
and
the
cameras
started
rolling
.
The
director
shouted
"
Action
!"
and
the
cameras
started
rolling
.
•
Critics
praised
the
director
for
the
movie's
beautiful
scenes
.
Critics
praised
the
director
for
the
movie's
beautiful
scenes
.
extended
from
the
sense
of
one
who
guides
,
applied
to
guiding
artistic
performance
in
the
late
19th
century
senator
noun
a
politician
elected
to
a
country
’
s
senate
,
the
group
of
lawmakers
who
discuss
,
write
,
and
vote
on
new
laws
•
The
newly
elected
senator
shook
hands
with
cheering
supporters
outside
the
city
hall
.
The
newly
elected
senator
shook
hands
with
cheering
supporters
outside
the
city
hall
.
•
A
group
of
high-school
students
toured
the
Capitol
and
interviewed
a
senator
about
climate
policy
.
A
group
of
high-school
students
toured
the
Capitol
and
interviewed
a
senator
about
climate
policy
.
From
Latin
senātor
,
meaning
‘
member
of
the
senate
’,
from
senātus
‘
senate
’,
literally
‘
council
of
elders
’.
attorney
noun
a
lawyer
:
a
person
licensed
to
give
legal
advice
and
to
represent
people
in
court
•
The
attorney
explained
the
contract
in
simple
language
to
her
client
.
The
attorney
explained
the
contract
in
simple
language
to
her
client
.
•
After
the
accident
,
Jake
hired
an
experienced
attorney
to
handle
his
case
.
After
the
accident
,
Jake
hired
an
experienced
attorney
to
handle
his
case
.
from
Old
French
atorner
“
to
appoint
,
assign
”,
later
meaning
“
one
appointed
”,
adopted
into
Middle
English
as
“
attourney
”
noun
(
archaic
)
an
agent
or
representative
legally
appointed
to
act
for
someone
in
business
or
personal
matters
•
In
1720
,
a
London
merchant
appointed
an
attorney
to
manage
his
affairs
in
the
colonies
.
In
1720
,
a
London
merchant
appointed
an
attorney
to
manage
his
affairs
in
the
colonies
.
•
The
noblewoman's
attorney
collected
rent
from
her
tenants
while
she
traveled
abroad
.
The
noblewoman's
attorney
collected
rent
from
her
tenants
while
she
traveled
abroad
.
Same
origin
as
the
modern
sense
,
but
broadened
in
Middle
English
to
mean
anyone
legally
empowered
to
act
for
another
.
editor
noun
a
person
who
selects
,
revises
,
and
decides
what
will
appear
in
a
newspaper
,
magazine
,
book
,
or
online
publication
•
The
editor
rewrote
the
headline
to
make
it
clearer
for
readers
.
The
editor
rewrote
the
headline
to
make
it
clearer
for
readers
.
•
After
months
of
work
,
the
editor
sent
the
author
a
final
proof
of
the
novel
.
After
months
of
work
,
the
editor
sent
the
author
a
final
proof
of
the
novel
.
From
Latin
‘
ēditor
’
meaning
‘
producer
,
publisher
’,
derived
from
‘
ēdere
’ “
to
bring
forth
,
publish
”.
noun
a
computer
program
used
to
create
and
change
text
,
images
,
or
code
•
He
wrote
the
website
using
a
simple
text
editor
.
He
wrote
the
website
using
a
simple
text
editor
.
•
The
photo
editor
lets
you
crop
and
adjust
colors
with
one
click
.
The
photo
editor
lets
you
crop
and
adjust
colors
with
one
click
.
Sense
extended
from
‘
person
who
edits
’
to
‘
tool
that
performs
editing
’
in
computing
jargon
of
the
1960s
.
noun
a
person
who
selects
and
joins
together
recorded
video
or
audio
to
create
a
finished
film
,
show
,
or
song
•
The
film
’
s
editor
spent
weeks
cutting
the
scenes
into
a
smooth
story
.
The
film
’
s
editor
spent
weeks
cutting
the
scenes
into
a
smooth
story
.
•
After
recording
the
podcast
,
the
audio
editor
removed
background
noise
.
After
recording
the
podcast
,
the
audio
editor
removed
background
noise
.
Adopted
in
early
20th-century
film
industry
from
earlier
publishing
sense
,
referring
to
cutting
and
splicing
film
.
victory
noun
-
victory
,
victories
success
in
a
competition
,
battle
,
game
,
or
struggle
•
The
home
team
celebrated
their
victory
with
confetti
and
cheers
.
The
home
team
celebrated
their
victory
with
confetti
and
cheers
.
•
Patience
and
practice
were
the
keys
to
victory
in
the
chess
tournament
.
Patience
and
practice
were
the
keys
to
victory
in
the
chess
tournament
.
from
Latin
victoria
“
conquest
,
success
,”
related
to
vincere
“
to
conquer
”
interjection
an
exclamation
shouted
when
you
win
or
succeed
•
When
the
final
puzzle
piece
clicked
into
place
,
he
threw
his
arms
up
and
shouted
, "
Victory
!"
When
the
final
puzzle
piece
clicked
into
place
,
he
threw
his
arms
up
and
shouted
, "
Victory
!"
•
"
Victory
!"
the
young
woman
exclaimed
as
she
crossed
the
finish
line
ahead
of
everyone
else
.
"
Victory
!"
the
young
woman
exclaimed
as
she
crossed
the
finish
line
ahead
of
everyone
else
.
same
origin
as
the
noun
;
used
as
a
shout
of
triumph
since
the
18th
century
storm
noun
a
period
of
very
bad
weather
with
strong
wind
,
heavy
rain
,
snow
,
thunder
,
or
lightning
•
The
storm
knocked
down
several
trees
in
our
neighborhood
.
The
storm
knocked
down
several
trees
in
our
neighborhood
.
•
Fishermen
hurried
back
to
port
when
they
heard
a
storm
warning
on
the
radio
.
Fishermen
hurried
back
to
port
when
they
heard
a
storm
warning
on
the
radio
.
Old
English
“
storm
”
meaning
violent
disturbance
of
the
atmosphere
;
related
to
Old
Norse
“
stormr
”.
verb
to
enter
or
leave
a
place
suddenly
and
angrily
•
Upset
by
the
comment
,
she
stormed
out
of
the
meeting
.
Upset
by
the
comment
,
she
stormed
out
of
the
meeting
.
•
The
teenager
storms
into
his
room
and
slams
the
door
.
The
teenager
storms
into
his
room
and
slams
the
door
.
verb
(
of
weather
)
to
have
stormy
conditions
with
strong
wind
,
rain
,
or
snow
•
It
stormed
all
night
,
rattling
the
windows
.
It
stormed
all
night
,
rattling
the
windows
.
•
The
forecast
says
it
will
storm
this
afternoon
.
The
forecast
says
it
will
storm
this
afternoon
.
noun
a
sudden
strong
outburst
of
emotion
,
noise
,
or
public
reaction
•
The
mayor's
decision
triggered
a
storm
of
criticism
online
.
The
mayor's
decision
triggered
a
storm
of
criticism
online
.
•
Her
speech
was
met
with
a
storm
of
applause
.
Her
speech
was
met
with
a
storm
of
applause
.
verb
to
suddenly
attack
and
take
control
of
a
place
using
force
•
Rebel
soldiers
stormed
the
palace
at
dawn
.
Rebel
soldiers
stormed
the
palace
at
dawn
.
•
The
SWAT
team
stormed
the
building
to
rescue
the
hostages
.
The
SWAT
team
stormed
the
building
to
rescue
the
hostages
.
actor
noun
a
person
whose
job
is
to
pretend
to
be
a
character
in
a
play
,
film
,
or
television
show
•
The
actor
bowed
to
the
audience
after
the
play
ended
.
The
actor
bowed
to
the
audience
after
the
play
ended
.
•
My
sister
wants
to
become
an
actor
when
she
grows
up
.
My
sister
wants
to
become
an
actor
when
she
grows
up
.
From
Latin
"
actor
"
meaning
“
doer
,
performer
”,
from
"
agere
" “
to
do
,
drive
”.
noun
someone
or
something
that
takes
part
in
a
particular
situation
or
activity
and
influences
what
happens
•
Local
businesses
are
important
actors
in
the
town
’
s
economy
.
Local
businesses
are
important
actors
in
the
town
’
s
economy
.
•
Several
political
actors
met
to
discuss
the
new
law
.
Several
political
actors
met
to
discuss
the
new
law
.
noun
in
computing
,
an
independent
unit
of
code
that
receives
messages
and
performs
actions
,
used
in
the
actor
model
of
concurrency
•
Each
actor
in
the
system
processes
messages
independently
.
Each
actor
in
the
system
processes
messages
independently
.
•
The
developer
modeled
the
chat
server
as
a
group
of
communicating
actors
.
The
developer
modeled
the
chat
server
as
a
group
of
communicating
actors
.
participate
verb
-
participate
,
participating
,
participates
,
participated
to
take
part
in
an
activity
,
event
,
or
situation
with
other
people
•
All
the
students
agreed
to
participate
in
the
science
fair
.
All
the
students
agreed
to
participate
in
the
science
fair
.
•
If
you
want
to
participate
,
please
sign
up
before
Friday
.
If
you
want
to
participate
,
please
sign
up
before
Friday
.
Mid-16th
century
,
from
Latin
participat-
‘
shared
in
’,
from
participare
‘
share
in
’,
from
pars
,
part-
‘
part
’
+
capere
‘
take
’.
verb
-
participate
,
participating
,
participates
,
participated
to
share
in
or
possess
a
part
of
a
quality
,
characteristic
,
or
element
•
The
novel
participates
in
both
comedy
and
tragedy
.
The
novel
participates
in
both
comedy
and
tragedy
.
•
Her
speech
participated
in
the
optimism
of
the
era
.
Her
speech
participated
in
the
optimism
of
the
era
.
Same
origin
as
the
common
sense
:
from
Latin
participare
“
share
in
”,
emphasizing
the
idea
of
possessing
a
portion
of
something
.
historical
adjective
connected
with
the
study
,
recording
,
or
explanation
of
events
that
happened
in
the
past
•
Our
town
has
a
small
but
fascinating
historical
museum
.
Our
town
has
a
small
but
fascinating
historical
museum
.
•
The
students
used
historical
documents
to
learn
about
the
civil
war
.
The
students
used
historical
documents
to
learn
about
the
civil
war
.
From
Latin
‘
historicus
’ (
historical
,
of
history
)
via
Medieval
Latin
‘
historicalis
’.
adjective
belonging
to
the
past
or
based
on
real
events
that
actually
happened
long
ago
•
The
castle
is
a
historical
landmark
dating
back
to
the
12th
century
.
The
castle
is
a
historical
landmark
dating
back
to
the
12th
century
.
•
They
dressed
up
as
historical
figures
for
the
school
play
.
They
dressed
up
as
historical
figures
for
the
school
play
.
noun
a
book
,
film
,
or
play
that
tells
a
fictional
story
set
in
the
past
•
He
picked
up
a
historical
about
ancient
Rome
.
He
picked
up
a
historical
about
ancient
Rome
.
•
The
bookstore
has
a
special
table
for
best-selling
historicals
.
The
bookstore
has
a
special
table
for
best-selling
historicals
.
investor
noun
a
person
or
organization
that
puts
money
,
time
,
or
effort
into
a
business
,
project
,
or
asset
hoping
to
make
a
profit
or
gain
•
The
investor
bought
shares
in
several
technology
companies
.
The
investor
bought
shares
in
several
technology
companies
.
•
A
cautious
investor
always
studies
the
market
before
risking
money
.
A
cautious
investor
always
studies
the
market
before
risking
money
.
From
the
verb
invest
+
-or
,
first
recorded
in
English
in
the
17th
century
to
describe
someone
who
commits
funds
for
profit
.
sector
noun
a
separate
part
of
a
country
’
s
economy
or
industry
,
such
as
technology
,
finance
,
or
agriculture
•
Jobs
in
the
technology
sector
are
growing
rapidly
.
Jobs
in
the
technology
sector
are
growing
rapidly
.
•
After
the
recession
,
the
construction
sector
struggled
to
recover
.
After
the
recession
,
the
construction
sector
struggled
to
recover
.
noun
a
distinct
area
or
zone
within
a
larger
physical
space
,
often
marked
off
for
a
particular
purpose
•
Tourists
love
wandering
through
the
historic
sector
of
the
city
.
Tourists
love
wandering
through
the
historic
sector
of
the
city
.
•
Firefighters
quickly
arrived
to
control
the
blaze
in
the
industrial
sector
.
Firefighters
quickly
arrived
to
control
the
blaze
in
the
industrial
sector
.
noun
the
part
of
a
circle
bounded
by
two
radii
and
the
arc
between
them
•
The
teacher
shaded
a
90-degree
sector
on
the
circle
to
show
a
quarter
of
the
pizza
.
The
teacher
shaded
a
90-degree
sector
on
the
circle
to
show
a
quarter
of
the
pizza
.
•
To
find
the
area
of
a
circular
sector
,
you
multiply
the
radius
squared
by
half
the
angle
in
radians
.
To
find
the
area
of
a
circular
sector
,
you
multiply
the
radius
squared
by
half
the
angle
in
radians
.
noun
the
smallest
fixed-size
unit
of
data
that
can
be
read
from
or
written
to
a
magnetic
or
optical
storage
device
•
A
damaged
sector
on
the
hard
drive
caused
the
video
file
to
become
unreadable
.
A
damaged
sector
on
the
hard
drive
caused
the
video
file
to
become
unreadable
.
•
The
disk-checking
utility
scanned
every
sector
for
errors
.
The
disk-checking
utility
scanned
every
sector
for
errors
.
noun
an
area
of
land
,
sea
,
or
air
assigned
to
a
military
unit
for
control
or
operations
•
The
infantry
unit
was
ordered
to
secure
the
northern
sector
before
dawn
.
The
infantry
unit
was
ordered
to
secure
the
northern
sector
before
dawn
.
•
Fighter
jets
patrolled
the
coastal
sector
to
deter
enemy
ships
.
Fighter
jets
patrolled
the
coastal
sector
to
deter
enemy
ships
.
tear
verb
-
tear
,
tearing
,
tears
,
tore
,
torn
to
pull
something
apart
or
make
a
hole
in
it
with
force
•
Be
careful
not
to
tear
the
wrapping
paper
when
you
open
the
gift
.
Be
careful
not
to
tear
the
wrapping
paper
when
you
open
the
gift
.
•
She
tore
the
letter
into
tiny
pieces
and
threw
it
away
.
She
tore
the
letter
into
tiny
pieces
and
threw
it
away
.
verb
-
tear
,
tearing
,
tears
,
tore
,
torn
to
move
very
quickly
and
often
noisily
or
recklessly
•
The
kids
tore
down
the
hallway
after
the
final
bell
rang
.
The
kids
tore
down
the
hallway
after
the
final
bell
rang
.
•
A
red
sports
car
tore
past
us
on
the
highway
.
A
red
sports
car
tore
past
us
on
the
highway
.
visitor
noun
someone
who
goes
to
see
a
person
,
place
,
or
event
for
a
short
time
but
does
not
live
or
work
there
•
The
museum
welcomed
over
a
thousand
visitors
on
its
opening
day
.
The
museum
welcomed
over
a
thousand
visitors
on
its
opening
day
.
•
Our
grandma
is
coming
to
stay
,
so
make
sure
the
guest
room
is
tidy
for
our
visitor
.
Our
grandma
is
coming
to
stay
,
so
make
sure
the
guest
room
is
tidy
for
our
visitor
.
From
Anglo-French
visitour
,
from
Old
French
visiteor
,
based
on
Latin
visitare
“
to
go
to
see
”.
noun
in
sports
,
the
player
or
team
that
is
competing
away
from
its
own
ground
•
The
visitors
scored
a
goal
in
the
first
five
minutes
.
The
visitors
scored
a
goal
in
the
first
five
minutes
.
•
Home
fans
cheered
when
the
visitor
missed
the
penalty
.
Home
fans
cheered
when
the
visitor
missed
the
penalty
.
Sporting
sense
recorded
since
the
late
19th
century
,
based
on
the
idea
of
a
team
visiting
another
’
s
ground
.
noun
a
person
who
opens
or
views
a
website
or
online
page
•
The
blog
attracts
hundreds
of
unique
visitors
every
day
.
The
blog
attracts
hundreds
of
unique
visitors
every
day
.
•
We
redesigned
the
homepage
so
visitors
can
find
information
faster
.
We
redesigned
the
homepage
so
visitors
can
find
information
faster
.
Sense
extended
from
physical
visitor
to
online
context
in
the
early
1990s
as
the
World
Wide
Web
grew
.
prosecutor
noun
a
lawyer
who
works
for
the
government
in
a
criminal
case
and
tries
to
prove
that
the
person
on
trial
committed
the
crime
•
The
prosecutor
showed
the
jury
photographs
of
the
crime
scene
.
The
prosecutor
showed
the
jury
photographs
of
the
crime
scene
.
•
After
new
evidence
appeared
,
the
prosecutor
decided
to
drop
all
charges
.
After
new
evidence
appeared
,
the
prosecutor
decided
to
drop
all
charges
.
Borrowed
from
Latin
prōscrīptor
and
later
Medieval
Latin
prōsecūtor
,
literally
“
one
who
follows
up
(
a
legal
action
).”
The
sense
of
a
state
lawyer
developed
in
English
in
the
17th
century
.
territory
noun
-
territory
,
territories
an
area
of
land
that
is
ruled
,
owned
,
or
controlled
by
a
particular
country
,
ruler
,
or
group
•
The
small
island
became
part
of
the
nation's
territory
after
the
treaty
.
The
small
island
became
part
of
the
nation's
territory
after
the
treaty
.
•
Explorers
mapped
the
northern
territory
for
the
king
.
Explorers
mapped
the
northern
territory
for
the
king
.
Late
Middle
English
:
from
Latin
territorium
,
originally
‘
land
around
a
town
’,
from
terra
‘
land
’.
noun
-
territory
,
territories
the
area
that
an
animal
or
person
regularly
uses
and
defends
against
others
•
The
cat
patrolled
the
garden
,
making
sure
no
other
cat
entered
its
territory
.
The
cat
patrolled
the
garden
,
making
sure
no
other
cat
entered
its
territory
.
•
Male
lions
roar
loudly
to
warn
rivals
away
from
their
territory
.
Male
lions
roar
loudly
to
warn
rivals
away
from
their
territory
.
Transferred
use
from
the
human
sense
of
land
ownership
to
animal
behavior
in
the
early
20th
century
.
noun
-
territory
,
territories
a
subject
,
activity
,
or
area
of
knowledge
that
someone
is
responsible
for
or
familiar
with
•
I'm
happy
to
help
with
grammar
,
but
advanced
physics
is
outside
my
territory
.
I'm
happy
to
help
with
grammar
,
but
advanced
physics
is
outside
my
territory
.
•
The
new
manager
quickly
learned
that
budgeting
was
unfamiliar
territory
for
her
.
The
new
manager
quickly
learned
that
budgeting
was
unfamiliar
territory
for
her
.
Figurative
use
arose
in
the
19th
century
,
extending
the
idea
of
physical
land
to
mental
or
professional
areas
.
factory
noun
-
factory
,
factories
a
building
or
group
of
buildings
where
people
and
machines
make
goods
,
usually
in
large
quantities
•
The
new
car
factory
opened
near
the
river
last
month
.
The
new
car
factory
opened
near
the
river
last
month
.
•
During
our
school
trip
,
we
watched
workers
wrap
chocolate
bars
inside
the
old
brick
factory
.
During
our
school
trip
,
we
watched
workers
wrap
chocolate
bars
inside
the
old
brick
factory
.
late
16th
century
:
from
French
factorerie
,
based
on
Latin
factor
‘
doer
,
maker
’;
originally
denoting
an
establishment
for
factors
(
merchants
)
engaged
in
trade
,
later
evolving
to
mean
a
place
where
goods
are
manufactured
.
noun
-
factory
,
factories
in
computing
,
a
function
,
method
,
or
class
that
creates
and
returns
new
objects
of
a
particular
type
•
The
widget
factory
generates
buttons
with
the
correct
color
and
size
for
our
app
.
The
widget
factory
generates
buttons
with
the
correct
color
and
size
for
our
app
.
•
Using
a
factory
prevents
us
from
exposing
complex
constructor
logic
to
other
modules
.
Using
a
factory
prevents
us
from
exposing
complex
constructor
logic
to
other
modules
.
Borrowed
from
the
general
sense
‘
place
where
something
is
produced
’;
adopted
by
programmers
in
the
1980s
to
describe
code
that
‘
manufactures
’
software
objects
.
monitor
noun
a
screen
that
shows
images
and
information
from
a
computer
,
camera
,
or
other
electronic
device
•
In
her
home
office
,
Mia
adjusted
the
height
of
her
new
monitor
so
she
could
see
the
spreadsheet
clearly
.
In
her
home
office
,
Mia
adjusted
the
height
of
her
new
monitor
so
she
could
see
the
spreadsheet
clearly
.
•
The
airport
security
worker
watched
several
monitors
that
displayed
footage
from
every
gate
.
The
airport
security
worker
watched
several
monitors
that
displayed
footage
from
every
gate
.
noun
a
person
whose
job
or
role
is
to
watch
something
carefully
to
make
sure
rules
are
followed
or
to
gather
information
•
A
student
monitor
stood
by
the
door
,
making
sure
everyone
signed
the
attendance
sheet
.
A
student
monitor
stood
by
the
door
,
making
sure
everyone
signed
the
attendance
sheet
.
•
International
election
monitors
observed
voting
stations
to
ensure
fairness
.
International
election
monitors
observed
voting
stations
to
ensure
fairness
.
verb
to
watch
,
check
,
or
keep
track
of
something
carefully
over
a
period
of
time
•
Engineers
monitor
the
bridge
around
the
clock
for
any
sign
of
movement
.
Engineers
monitor
the
bridge
around
the
clock
for
any
sign
of
movement
.
•
The
doctor
monitored
the
patient's
heart
rate
overnight
.
The
doctor
monitored
the
patient's
heart
rate
overnight
.
noun
a
piece
of
equipment
that
measures
and
records
something
,
such
as
a
person
’
s
heart
rate
or
the
level
of
a
gas
•
The
nurse
clipped
a
heart
monitor
onto
the
baby's
tiny
finger
.
The
nurse
clipped
a
heart
monitor
onto
the
baby's
tiny
finger
.
•
A
carbon-dioxide
monitor
on
the
wall
beeped
when
the
levels
rose
.
A
carbon-dioxide
monitor
on
the
wall
beeped
when
the
levels
rose
.
noun
a
large
,
strong
lizard
found
in
Africa
,
Asia
,
and
Australia
,
with
a
long
neck
and
tail
•
The
ranger
pointed
at
a
monitor
basking
on
the
riverbank
in
the
afternoon
sun
.
The
ranger
pointed
at
a
monitor
basking
on
the
riverbank
in
the
afternoon
sun
.
•
Some
people
keep
small
species
of
monitors
as
exotic
pets
.
Some
people
keep
small
species
of
monitors
as
exotic
pets
.
investigator
noun
a
person
whose
job
is
to
discover
the
facts
about
a
crime
,
accident
,
or
mystery
•
The
investigator
carefully
photographed
the
footprints
at
the
deserted
warehouse
.
The
investigator
carefully
photographed
the
footprints
at
the
deserted
warehouse
.
•
Neighbors
watched
as
an
investigator
collected
fingerprints
from
the
broken
window
.
Neighbors
watched
as
an
investigator
collected
fingerprints
from
the
broken
window
.
noun
a
scientist
or
scholar
who
designs
and
leads
a
research
study
•
The
lead
investigator
presented
the
study's
findings
at
the
medical
conference
.
The
lead
investigator
presented
the
study's
findings
at
the
medical
conference
.
•
Each
investigator
must
obtain
approval
from
the
ethics
committee
before
starting
the
trial
.
Each
investigator
must
obtain
approval
from
the
ethics
committee
before
starting
the
trial
.
motor
noun
a
machine
that
changes
electrical
,
fuel
,
or
other
forms
of
energy
into
mechanical
movement
to
make
something
work
or
move
•
The
electric
motor
in
the
fan
stopped
working
during
the
heat
wave
.
The
electric
motor
in
the
fan
stopped
working
during
the
heat
wave
.
•
A
mechanic
showed
us
how
the
car
’
s
motor
turns
fuel
into
motion
.
A
mechanic
showed
us
how
the
car
’
s
motor
turns
fuel
into
motion
.
From
Latin
motus
“
movement
”,
via
Late
Latin
motor
“
mover
,
prime
mover
”,
adopted
into
English
in
the
mid-19th
century
for
machines
that
produce
motion
.
noun
an
informal
word
for
a
car
•
He
bought
a
second-hand
motor
to
drive
to
work
.
He
bought
a
second-hand
motor
to
drive
to
work
.
•
Can
you
give
my
motor
a
clean
before
the
trip
?
Can
you
give
my
motor
a
clean
before
the
trip
?
Extension
of
the
main
sense
“
machine
that
produces
motion
”
to
mean
“
motorcar
”,
first
recorded
in
British
slang
in
the
early
20th
century
.
adjective
relating
to
muscles
,
movement
,
or
the
nerves
that
control
them
•
The
toddler
is
developing
his
fine
motor
skills
by
stacking
blocks
.
The
toddler
is
developing
his
fine
motor
skills
by
stacking
blocks
.
•
After
the
accident
she
needed
therapy
to
regain
motor
control
in
her
left
hand
.
After
the
accident
she
needed
therapy
to
regain
motor
control
in
her
left
hand
.
Adjective
use
dates
from
the
late
19th
century
,
extended
from
the
noun
to
describe
nerves
and
areas
of
the
body
responsible
for
movement
.
verb
-
motor
,
motoring
,
motors
,
motored
to
travel
in
a
motor
vehicle
or
to
move
somewhere
quickly
•
We
motored
down
the
coast
road
enjoying
the
sea
breeze
.
We
motored
down
the
coast
road
enjoying
the
sea
breeze
.
•
They
plan
to
motor
across
Europe
during
the
summer
holidays
.
They
plan
to
motor
across
Europe
during
the
summer
holidays
.
Early
20th-century
extension
of
the
noun
“
motor
”,
first
in
the
sense
“
to
travel
by
motorcar
”,
later
generalized
to
any
fast
movement
.
restore
verb
-
restore
,
restoring
,
restores
,
restored
to
repair
or
clean
something
so
that
it
looks
or
works
like
it
did
when
it
was
new
•
A
team
of
experts
carefully
restore
the
ancient
mural
,
revealing
its
bright
original
colors
.
A
team
of
experts
carefully
restore
the
ancient
mural
,
revealing
its
bright
original
colors
.
•
The
mechanic
promised
to
restore
the
vintage
motorcycle
to
working
order
by
summer
.
The
mechanic
promised
to
restore
the
vintage
motorcycle
to
working
order
by
summer
.
Borrowed
from
Latin
“
restaurare
”
meaning
“
to
rebuild
or
renew
.”
verb
-
restore
,
restoring
,
restores
,
restored
to
make
a
situation
,
feeling
,
or
system
exist
again
after
it
disappeared
or
was
lost
•
Extra
police
were
deployed
to
restore
order
after
the
protest
turned
chaotic
.
Extra
police
were
deployed
to
restore
order
after
the
protest
turned
chaotic
.
•
The
apology
helped
restore
trust
between
the
two
longtime
friends
.
The
apology
helped
restore
trust
between
the
two
longtime
friends
.
verb
-
restore
,
restoring
,
restores
,
restored
to
give
something
back
to
the
person
,
place
,
or
condition
it
rightfully
belongs
to
•
The
museum
agreed
to
restore
the
stolen
sculpture
to
its
original
owners
.
The
museum
agreed
to
restore
the
stolen
sculpture
to
its
original
owners
.
•
The
new
policy
will
restore
land
to
the
indigenous
community
.
The
new
policy
will
restore
land
to
the
indigenous
community
.
noun
an
operation
that
copies
computer
data
back
from
a
backup
so
it
can
be
used
again
•
After
the
crash
,
the
IT
team
performed
a
restore
to
recover
last
night's
files
.
After
the
crash
,
the
IT
team
performed
a
restore
to
recover
last
night's
files
.
•
Running
a
full
restore
may
take
several
hours
,
depending
on
the
size
of
the
database
.
Running
a
full
restore
may
take
several
hours
,
depending
on
the
size
of
the
database
.
historic
adjective
Very
important
or
likely
to
be
remembered
in
history
;
marking
a
significant
moment
.
•
The
signing
of
the
peace
treaty
was
a
historic
event
for
the
region
.
The
signing
of
the
peace
treaty
was
a
historic
event
for
the
region
.
•
Scientists
hailed
the
first
image
of
a
black
hole
as
a
historic
achievement
.
Scientists
hailed
the
first
image
of
a
black
hole
as
a
historic
achievement
.
From
Latin
historicus
,
via
Old
French
historique
,
meaning
‘
narrative
,
important
in
history
’.
adjective
Belonging
to
or
remaining
from
the
past
and
considered
valuable
or
interesting
.
•
The
town
is
full
of
historic
houses
that
date
back
to
the
18th
century
.
The
town
is
full
of
historic
houses
that
date
back
to
the
18th
century
.
•
Tourists
love
walking
along
the
historic
city
walls
.
Tourists
love
walking
along
the
historic
city
walls
.
Same
origin
as
Sense
1
;
over
time
it
also
came
to
describe
surviving
things
from
the
past
that
attract
interest
.
educator
noun
a
person
whose
job
is
to
teach
or
train
other
people
,
especially
in
a
school
,
college
,
or
training
program
•
The
educator
greeted
her
students
with
a
warm
smile
on
the
first
day
of
class
.
The
educator
greeted
her
students
with
a
warm
smile
on
the
first
day
of
class
.
•
As
an
educator
,
Mr
.
Lopez
uses
games
to
make
math
fun
.
As
an
educator
,
Mr
.
Lopez
uses
games
to
make
math
fun
.
From
Latin
educare
“
to
lead
out
,
educate
”
+
the
agent
suffix
-or
.
storage
noun
space
,
room
,
or
containers
used
for
keeping
things
•
The
apartment
is
small
but
has
plenty
of
built-in
storage
.
The
apartment
is
small
but
has
plenty
of
built-in
storage
.
•
We
rented
a
self-storage
unit
while
moving
houses
.
We
rented
a
self-storage
unit
while
moving
houses
.
See
main
etymology
above
;
sense
shifted
to
refer
to
the
place
where
things
are
stored
.
noun
-
storage
the
act
or
process
of
keeping
things
in
a
safe
place
until
they
are
needed
•
Good
pickles
develop
their
flavor
during
cool
,
dark
storage
.
Good
pickles
develop
their
flavor
during
cool
,
dark
storage
.
•
When
the
kayaks
aren
’
t
needed
,
they
fold
up
for
easy
storage
in
the
closet
.
When
the
kayaks
aren
’
t
needed
,
they
fold
up
for
easy
storage
in
the
closet
.
Late
Middle
English
:
from
store
+
the
suffix
-age
,
indicating
an
action
or
its
result
.
noun
-
storage
the
digital
memory
or
disk
capacity
available
for
saving
data
on
a
computer
or
device
•
My
phone
is
out
of
storage
,
so
I
need
to
delete
some
photos
.
My
phone
is
out
of
storage
,
so
I
need
to
delete
some
photos
.
•
Cloud
storage
lets
you
access
your
files
from
any
device
.
Cloud
storage
lets
you
access
your
files
from
any
device
.
Extended
to
computing
in
the
mid-20th
century
as
digital
memory
became
comparable
to
physical
storage
.
laboratory
noun
-
laboratory
,
laboratories
a
room
or
building
with
special
equipment
where
scientists
,
technicians
,
or
students
carry
out
experiments
,
research
,
or
tests
•
The
students
wore
white
coats
as
they
mixed
chemicals
in
the
school
laboratory
.
The
students
wore
white
coats
as
they
mixed
chemicals
in
the
school
laboratory
.
•
In
the
crime
laboratory
,
a
male
technician
examined
fingerprints
under
a
powerful
microscope
.
In
the
crime
laboratory
,
a
male
technician
examined
fingerprints
under
a
powerful
microscope
.
Late
16th
century
:
from
medieval
Latin
laboratorium
‘
a
place
for
labor
or
work
’,
from
Latin
labor
‘
work
’.
noun
-
laboratory
,
laboratories
a
place
,
situation
,
or
environment
where
new
ideas
,
methods
,
or
activities
are
tested
and
developed
•
Silicon
Valley
is
a
living
laboratory
for
cutting-edge
technology
.
Silicon
Valley
is
a
living
laboratory
for
cutting-edge
technology
.
•
The
island
became
a
real-world
laboratory
of
sustainable
energy
projects
.
The
island
became
a
real-world
laboratory
of
sustainable
energy
projects
.
Extended
figurative
use
dating
from
the
early
20th
century
,
applying
the
idea
of
a
test
environment
to
social
and
creative
fields
.
administrator
noun
a
person
whose
job
is
to
organise
,
manage
,
and
run
the
daily
operations
of
an
organisation
such
as
a
school
,
company
,
or
government
department
•
The
school
administrator
greeted
parents
at
the
entrance
on
the
first
day
of
classes
.
The
school
administrator
greeted
parents
at
the
entrance
on
the
first
day
of
classes
.
•
As
an
administrator
,
Maria
approves
all
budget
requests
before
they
are
sent
to
the
board
.
As
an
administrator
,
Maria
approves
all
budget
requests
before
they
are
sent
to
the
board
.
from
Latin
administrātor
‘
manager
,
steward
’,
from
administrāre
‘
to
manage
’
narrator
noun
the
person
,
often
unseen
,
who
tells
the
events
of
a
story
in
a
book
,
play
,
film
,
or
other
medium
•
The
narrator
described
the
snow-covered
mountains
in
a
calm
,
gentle
voice
.
The
narrator
described
the
snow-covered
mountains
in
a
calm
,
gentle
voice
.
•
In
many
detective
novels
,
the
narrator
already
knows
who
committed
the
crime
.
In
many
detective
novels
,
the
narrator
already
knows
who
committed
the
crime
.
From
Latin
nārrātor
(“
relater
,
storyteller
”),
from
nārrō
(“
relate
,
tell
”).
Narrator
noun
-
Narrator
the
built-in
Windows
screen-reader
program
that
reads
text
and
interface
elements
aloud
for
people
who
cannot
easily
see
the
screen
•
After
installing
Windows
,
he
turned
on
Narrator
to
set
up
his
account
without
a
mouse
.
After
installing
Windows
,
he
turned
on
Narrator
to
set
up
his
account
without
a
mouse
.
•
Pressing
Windows-Logo+Ctrl+Enter
starts
Narrator
right
away
.
Pressing
Windows-Logo+Ctrl+Enter
starts
Narrator
right
away
.
Named
by
Microsoft
for
its
function
of
“
narrating
”
on-screen
text
.
historian
noun
a
person
whose
job
or
serious
interest
is
to
study
,
write
about
,
and
explain
past
events
•
The
historian
spent
years
reading
dusty
letters
from
the
Civil
War
.
The
historian
spent
years
reading
dusty
letters
from
the
Civil
War
.
•
As
a
child
,
Maya
dreamed
of
becoming
a
historian
and
exploring
ancient
ruins
.
As
a
child
,
Maya
dreamed
of
becoming
a
historian
and
exploring
ancient
ruins
.
Late
Middle
English
,
from
Latin
historianus
,
from
historia
meaning
‘
history
’,
which
is
ultimately
from
Ancient
Greek
histor
‘
learned
,
wise
man
’.
operator
noun
someone
whose
job
is
to
control
a
machine
,
vehicle
,
or
system
•
The
escalator
stopped
because
the
operator
turned
it
off
for
maintenance
.
The
escalator
stopped
because
the
operator
turned
it
off
for
maintenance
.
•
A
skilled
crane
operator
lifted
the
steel
beams
into
place
.
A
skilled
crane
operator
lifted
the
steel
beams
into
place
.
From
Latin
“
operator
”
meaning
‘
worker
’,
from
“
operārī
” ‘
to
work
’.
noun
a
person
whose
job
is
to
connect
telephone
calls
and
give
information
to
callers
•
When
I
dialed
zero
,
the
operator
asked
which
department
I
wanted
.
When
I
dialed
zero
,
the
operator
asked
which
department
I
wanted
.
•
In
old
movies
,
you
often
see
a
telephone
operator
plugging
cables
into
a
big
board
.
In
old
movies
,
you
often
see
a
telephone
operator
plugging
cables
into
a
big
board
.
Extension
of
the
general
sense
‘
one
who
operates
’,
applied
to
early
telephone
switchboards
in
the
late
19th
century
.
noun
a
symbol
or
word
in
mathematics
or
computing
that
tells
the
system
to
perform
a
particular
calculation
or
action
•
In
the
equation
3
+
2
,
the
plus
sign
is
an
operator
.
In
the
equation
3
+
2
,
the
plus
sign
is
an
operator
.
•
Use
the
multiplication
operator
*
to
find
the
product
of
two
numbers
in
the
program
.
Use
the
multiplication
operator
*
to
find
the
product
of
two
numbers
in
the
program
.
Technical
use
developed
in
the
19th
century
to
name
symbols
that
‘
operate
’
on
numbers
or
variables
.
noun
informal
:
someone
who
is
very
good
at
making
deals
or
getting
what
they
want
,
often
in
a
clever
or
sometimes
dishonest
way
•
Jake
is
a
real
operator
;
he
always
walks
away
with
the
best
bargain
.
Jake
is
a
real
operator
;
he
always
walks
away
with
the
best
bargain
.
•
The
smooth
operator
convinced
investors
to
fund
his
risky
scheme
.
The
smooth
operator
convinced
investors
to
fund
his
risky
scheme
.
Metaphorical
extension
from
‘
one
who
works
machinery
’
to
‘
one
who
skillfully
works
situations
’,
attested
since
the
early
20th
century
.
competitor
noun
a
person
who
takes
part
in
a
contest
,
race
,
or
other
competition
,
trying
to
win
against
others
•
Each
competitor
had
to
swim
two
laps
before
starting
the
cycling
part
of
the
triathlon
.
Each
competitor
had
to
swim
two
laps
before
starting
the
cycling
part
of
the
triathlon
.
•
The
youngest
competitor
in
the
spelling
bee
stood
confidently
at
the
microphone
.
The
youngest
competitor
in
the
spelling
bee
stood
confidently
at
the
microphone
.
Borrowed
from
Latin
competĭtor
“
rival
,
seeker
together
”,
from
competere
“
to
strive
together
”.
noun
a
company
,
product
,
or
organization
that
tries
to
win
customers
or
market
share
from
another
•
The
new
coffee
shop
quickly
became
a
serious
competitor
to
the
old
café
across
the
street
.
The
new
coffee
shop
quickly
became
a
serious
competitor
to
the
old
café
across
the
street
.
•
Price
cuts
helped
the
company
stay
ahead
of
its
biggest
competitor
in
the
market
.
Price
cuts
helped
the
company
stay
ahead
of
its
biggest
competitor
in
the
market
.
Borrowed
from
Latin
competĭtor
;
commercial
sense
developed
in
English
in
the
late
19th
century
with
the
rise
of
modern
business
competition
.
instructor
noun
a
person
whose
job
is
to
teach
a
particular
subject
or
skill
,
especially
in
a
college
,
sports
center
,
or
training
program
•
After
a
few
lessons
,
the
driving
instructor
said
I
was
ready
for
the
test
.
After
a
few
lessons
,
the
driving
instructor
said
I
was
ready
for
the
test
.
•
The
yoga
instructor
guided
the
class
through
a
series
of
relaxing
poses
.
The
yoga
instructor
guided
the
class
through
a
series
of
relaxing
poses
.
early
15th
century
,
from
Latin
‘
instructor
’
meaning
‘
teacher
’,
from
‘
instruere
’ ‘
to
prepare
,
equip
,
teach
’.
pastor
noun
a
Christian
minister
who
leads
a
local
church
and
gives
spiritual
guidance
to
its
members
•
The
pastor
delivered
an
inspiring
sermon
on
forgiveness
.
The
pastor
delivered
an
inspiring
sermon
on
forgiveness
.
•
After
the
service
,
the
pastor
greeted
every
visitor
with
a
friendly
smile
at
the
church
door
.
After
the
service
,
the
pastor
greeted
every
visitor
with
a
friendly
smile
at
the
church
door
.
from
Latin
pastor
“
shepherd
,”
from
pastus
,
past
participle
of
pascere
“
to
feed
”
verb
-
pastor
,
pastoring
,
pastors
,
pastored
to
lead
a
church
or
to
give
spiritual
care
and
guidance
to
a
group
of
Christians
•
She
felt
called
to
pastor
a
small
rural
congregation
.
She
felt
called
to
pastor
a
small
rural
congregation
.
•
For
over
thirty
years
,
he
has
pastored
the
same
church
.
For
over
thirty
years
,
he
has
pastored
the
same
church
.
verb
use
developed
from
the
noun
meaning
“
to
act
as
a
pastor
.”
elevator
noun
a
machine
in
a
building
that
carries
people
or
goods
up
and
down
between
floors
•
Mia
pressed
the
button
and
waited
for
the
elevator
to
arrive
.
Mia
pressed
the
button
and
waited
for
the
elevator
to
arrive
.
•
The
hotel
’
s
glass
elevator
gave
us
a
stunning
view
of
the
city
skyline
.
The
hotel
’
s
glass
elevator
gave
us
a
stunning
view
of
the
city
skyline
.
From
the
verb
raise
‘
elevate
’
+
the
agentive
suffix
‘
-or
’;
first
used
in
19th-century
American
English
for
machinery
that
lifts
.
noun
a
hinged
horizontal
surface
on
an
aircraft
’
s
tail
that
makes
the
nose
point
up
or
down
•
The
pilot
adjusted
the
elevator
to
start
the
climb
after
take-off
.
The
pilot
adjusted
the
elevator
to
start
the
climb
after
take-off
.
•
Ice
on
the
elevator
can
reduce
an
aircraft
’
s
ability
to
pitch
correctly
.
Ice
on
the
elevator
can
reduce
an
aircraft
’
s
ability
to
pitch
correctly
.
Applied
to
aircraft
parts
in
the
early
1900s
because
the
surfaces
‘
elevate
’
the
nose
.
noun
a
tall
building
or
machine
for
lifting
,
storing
,
and
loading
grain
,
often
called
a
grain
elevator
•
The
wheat
was
carried
by
conveyor
into
the
town
’
s
wooden
grain
elevator
.
The
wheat
was
carried
by
conveyor
into
the
town
’
s
wooden
grain
elevator
.
•
After
harvest
,
every
truck
queued
to
unload
at
the
cooperative
’
s
concrete
elevator
.
After
harvest
,
every
truck
queued
to
unload
at
the
cooperative
’
s
concrete
elevator
.
The
term
was
extended
in
the
late
19th
century
to
large
grain-handling
structures
because
they
‘
elevate
’
grain
to
storage
bins
.
prosecution
noun
the
official
process
of
bringing
someone
accused
of
a
crime
to
court
and
trying
to
prove
they
are
guilty
•
Successful
prosecution
of
the
crime
depended
on
reliable
eyewitnesses
.
Successful
prosecution
of
the
crime
depended
on
reliable
eyewitnesses
.
•
The
detective
gathered
fresh
evidence
for
the
prosecution
.
The
detective
gathered
fresh
evidence
for
the
prosecution
.
Late
Middle
English
,
from
Latin
prosecutio
‘
continuation
,
pursuit
’,
from
prosequi
‘
pursue
’
rhetoric
noun
-
rhetoric
the
study
or
skill
of
using
words
clearly
and
persuasively
,
especially
in
public
speaking
or
writing
•
Ancient
Greek
students
practiced
rhetoric
to
sharpen
their
debating
skills
.
Ancient
Greek
students
practiced
rhetoric
to
sharpen
their
debating
skills
.
•
Good
politicians
often
study
rhetoric
so
they
can
speak
clearly
to
large
crowds
.
Good
politicians
often
study
rhetoric
so
they
can
speak
clearly
to
large
crowds
.
From
Latin
rhetorica
,
from
Ancient
Greek
rhētorikḗ
(
tekhnē
)
meaning
“(
art
)
of
an
orator
.”
noun
-
rhetoric
language
that
sounds
impressive
or
persuasive
but
is
often
exaggerated
,
insincere
,
or
lacking
real
substance
•
Voters
were
tired
of
the
candidate
’
s
empty
rhetoric
and
wanted
real
plans
.
Voters
were
tired
of
the
candidate
’
s
empty
rhetoric
and
wanted
real
plans
.
•
Behind
all
the
soaring
rhetoric
,
the
proposal
lacked
details
.
Behind
all
the
soaring
rhetoric
,
the
proposal
lacked
details
.
Sense
of
“
showy
language
”
arose
in
late
Middle
English
as
rhetorical
techniques
were
sometimes
critiqued
as
empty
show
.
indicator
noun
a
flashing
light
on
a
vehicle
that
shows
it
is
going
to
turn
left
or
right
•
He
forgot
to
switch
off
his
left
indicator
after
turning
the
corner
.
He
forgot
to
switch
off
his
left
indicator
after
turning
the
corner
.
•
The
driver
’
s
right
indicator
was
blinking
as
she
approached
the
roundabout
.
The
driver
’
s
right
indicator
was
blinking
as
she
approached
the
roundabout
.
specialised
motoring
sense
recorded
in
British
English
from
the
1920s
,
from
the
general
noun
'indicator'
noun
something
that
shows
,
points
out
,
or
measures
the
level
,
presence
,
or
change
of
something
•
The
rising
unemployment
rate
is
an
indicator
that
the
economy
is
slowing
down
.
The
rising
unemployment
rate
is
an
indicator
that
the
economy
is
slowing
down
.
•
The
battery
indicator
on
my
phone
turned
red
,
warning
me
to
charge
it
.
The
battery
indicator
on
my
phone
turned
red
,
warning
me
to
charge
it
.
from
Latin
indicare
“
to
point
out
”
+
English
-or
,
dating
to
the
early
17th
century
noun
in
chemistry
,
a
substance
that
changes
colour
to
show
whether
a
solution
is
acidic
,
neutral
,
or
alkaline
•
Litmus
paper
is
a
common
indicator
used
in
school
experiments
.
Litmus
paper
is
a
common
indicator
used
in
school
experiments
.
•
The
solution
turned
pink
when
the
phenolphthalein
indicator
was
added
.
The
solution
turned
pink
when
the
phenolphthalein
indicator
was
added
.
scientific
use
dates
from
the
late
19th
century
,
when
chemists
began
employing
colour-changing
compounds
to
test
solutions
contractor
noun
a
person
or
company
that
is
paid
under
a
formal
agreement
to
build
,
repair
,
or
supply
something
,
especially
in
construction
work
•
The
city
hired
a
contractor
to
repair
the
old
bridge
before
winter
.
The
city
hired
a
contractor
to
repair
the
old
bridge
before
winter
.
•
Our
kitchen
remodel
went
smoothly
because
the
contractor
coordinated
all
the
plumbers
and
electricians
.
Our
kitchen
remodel
went
smoothly
because
the
contractor
coordinated
all
the
plumbers
and
electricians
.
From
contract
+
-or
,
meaning
‘
one
who
undertakes
a
contract
’;
first
recorded
in
English
in
the
late
18th
century
in
building
trades
.
noun
a
self-employed
person
or
business
hired
for
a
specific
job
or
period
instead
of
being
a
regular
employee
•
As
an
IT
contractor
,
she
upgrades
company
networks
during
short-term
projects
.
As
an
IT
contractor
,
she
upgrades
company
networks
during
short-term
projects
.
•
The
studio
brings
in
freelance
contractors
during
peak
filming
season
.
The
studio
brings
in
freelance
contractors
during
peak
filming
season
.
Extended
from
the
construction
sense
to
self-employed
professionals
in
the
early
20th
century
as
work
arrangements
diversified
.
creator
noun
a
person
or
thing
that
makes
,
designs
,
or
invents
something
new
•
The
young
app
creator
sold
his
program
to
a
big
company
.
The
young
app
creator
sold
his
program
to
a
big
company
.
•
Mary
Shelley
is
famous
as
the
creator
of
the
novel
“
Frankenstein
”.
Mary
Shelley
is
famous
as
the
creator
of
the
novel
“
Frankenstein
”.
From
Latin
“
creator
”
meaning
“
maker
”,
from
the
verb
“
creare
”
meaning
“
to
create
or
bring
forth
”.
Creator
noun
-
Creator
a
name
for
God
,
believed
to
have
made
the
universe
•
Many
people
pray
to
the
Creator
for
guidance
.
Many
people
pray
to
the
Creator
for
guidance
.
•
Indigenous
stories
often
speak
of
the
Creator
shaping
the
land
and
the
animals
.
Indigenous
stories
often
speak
of
the
Creator
shaping
the
land
and
the
animals
.
Use
of
the
noun
“
Creator
”
to
mean
God
dates
from
the
late
Middle
English
period
,
influenced
by
Latin
“
Creator
”
in
Christian
texts
.
regulatory
adjective
connected
with
making
and
enforcing
rules
or
with
systems
that
control
how
something
works
•
The
new
law
gives
more
power
to
the
regulatory
agency
overseeing
banks
.
The
new
law
gives
more
power
to
the
regulatory
agency
overseeing
banks
.
•
Scientists
are
studying
the
regulatory
genes
that
switch
other
genes
on
and
off
.
Scientists
are
studying
the
regulatory
genes
that
switch
other
genes
on
and
off
.
inspector
noun
a
person
whose
job
is
to
examine
places
,
products
,
or
activities
carefully
to
make
sure
rules
are
followed
and
standards
are
met
.
•
The
health
inspector
visited
the
restaurant
to
check
the
kitchen
’
s
cleanliness
.
The
health
inspector
visited
the
restaurant
to
check
the
kitchen
’
s
cleanliness
.
•
A
building
inspector
examined
the
new
house
before
the
owners
moved
in
.
A
building
inspector
examined
the
new
house
before
the
owners
moved
in
.
From
Latin
‘
inspicere
’
meaning
‘
to
look
into
’,
through
Late
Latin
‘
inspector
’,
then
Middle
French
,
arriving
in
English
in
the
late
16th
century
.
noun
a
middle-ranking
police
officer
,
above
sergeant
and
below
chief
inspector
,
who
supervises
investigations
and
officers
.
•
The
inspector
led
the
morning
briefing
before
the
officers
began
their
patrol
.
The
inspector
led
the
morning
briefing
before
the
officers
began
their
patrol
.
•
After
hours
of
questioning
,
the
inspector
finally
obtained
a
confession
from
the
suspect
.
After
hours
of
questioning
,
the
inspector
finally
obtained
a
confession
from
the
suspect
.
Adopted
as
a
rank
title
in
British
police
forces
in
the
19th
century
,
reflecting
the
supervisory
role
of
inspecting
constables
’
work
.
historically
adverb
at
some
time
in
the
past
or
over
past
periods
of
time
•
She
historically
took
the
bus
to
work
before
buying
a
car
.
She
historically
took
the
bus
to
work
before
buying
a
car
.
•
The
village
has
historically
relied
on
fishing
for
its
income
.
The
village
has
historically
relied
on
fishing
for
its
income
.
formed
from
historic
+-ally
in
the
late
17th
century
to
mean
‘
in
reference
to
history
’.
adverb
from
the
point
of
view
of
history
or
historians
;
concerning
what
actually
happened
in
the
past
•
Historically
,
scholars
believed
the
sun
revolved
around
the
earth
.
Historically
,
scholars
believed
the
sun
revolved
around
the
earth
.
•
The
building
is
historically
significant
because
it
hosted
the
first
parliament
.
The
building
is
historically
significant
because
it
hosted
the
first
parliament
.
Same
as
sense
1
;
later
extended
in
the
19th
century
to
mean
‘
from
a
historian
’
s
viewpoint
’.
exploration
noun
the
act
of
traveling
through
or
over
a
place
that
is
unfamiliar
in
order
to
discover
what
it
is
like
•
Early
astronauts
risked
their
lives
in
the
exploration
of
outer
space
.
Early
astronauts
risked
their
lives
in
the
exploration
of
outer
space
.
•
The
kids
set
off
on
an
afternoon
exploration
of
the
nearby
forest
,
armed
with
maps
and
snacks
.
The
kids
set
off
on
an
afternoon
exploration
of
the
nearby
forest
,
armed
with
maps
and
snacks
.
late
15th
century
,
from
Latin
exploratio
“
investigation
,
scouting
,”
from
explorare
“
search
out
,
investigate
.”
noun
a
careful
study
or
discussion
of
an
idea
,
subject
,
or
feeling
in
order
to
understand
it
better
•
The
novel
is
an
exploration
of
loneliness
and
human
connection
.
The
novel
is
an
exploration
of
loneliness
and
human
connection
.
•
His
lecture
offered
a
deep
exploration
of
climate
change
ethics
.
His
lecture
offered
a
deep
exploration
of
climate
change
ethics
.
same
origin
as
sense
1
,
applied
figuratively
from
17th
century
onward
to
intellectual
investigation
.
noun
a
medical
procedure
in
which
a
surgeon
or
doctor
looks
inside
the
body
to
find
the
cause
of
a
problem
•
The
patient
underwent
an
abdominal
exploration
to
locate
the
source
of
internal
bleeding
.
The
patient
underwent
an
abdominal
exploration
to
locate
the
source
of
internal
bleeding
.
•
If
imaging
is
inconclusive
,
surgical
exploration
may
be
necessary
.
If
imaging
is
inconclusive
,
surgical
exploration
may
be
necessary
.
medical
use
recorded
since
mid-19th
century
,
extending
the
general
sense
of
‘
searching
’
to
surgical
practice
.
ancestor
noun
a
person
in
your
family
who
lived
long
before
you
and
from
whom
you
are
directly
descended
•
Lena
discovered
that
her
great-great
ancestor
fought
in
the
Civil
War
.
Lena
discovered
that
her
great-great
ancestor
fought
in
the
Civil
War
.
•
During
the
festival
,
the
family
lit
candles
to
honor
their
ancestors
.
During
the
festival
,
the
family
lit
candles
to
honor
their
ancestors
.
Middle
English
from
Old
French
ancestre
,
from
Latin
antecessor
meaning
‘
one
who
goes
before
’.
noun
an
earlier
form
or
model
of
an
animal
,
object
,
or
system
from
which
later
ones
have
developed
•
The
telegraph
is
often
considered
an
ancestor
of
the
modern
smartphone
.
The
telegraph
is
often
considered
an
ancestor
of
the
modern
smartphone
.
•
Scientists
believe
this
fossil
fish
is
an
ancestor
of
all
land
animals
.
Scientists
believe
this
fossil
fish
is
an
ancestor
of
all
land
animals
.
By
extension
of
the
family
sense
to
things
or
species
that
come
before
others
in
development
.
electoral
adjective
relating
to
elections
or
to
the
process
of
choosing
people
for
public
office
by
voting
•
The
country
reformed
its
electoral
system
to
make
voting
easier
.
The
country
reformed
its
electoral
system
to
make
voting
easier
.
•
Campaign
messages
focused
on
key
electoral
issues
like
healthcare
and
jobs
.
Campaign
messages
focused
on
key
electoral
issues
like
healthcare
and
jobs
.
From
French
électoral
,
based
on
Latin
elector
‘
chooser
,
voter
’,
from
eligere
‘
to
choose
’.
adjective
having
the
right
to
vote
in
an
election
•
In
some
early
democracies
,
only
landowners
had
electoral
rights
.
In
some
early
democracies
,
only
landowners
had
electoral
rights
.
•
The
new
constitution
expanded
electoral
privileges
to
women
.
The
new
constitution
expanded
electoral
privileges
to
women
.
Same
origin
as
main
sense
:
linked
to
Latin
elector
meaning
‘
chooser
’.
mentor
noun
a
person
,
usually
older
or
more
experienced
,
who
gives
guidance
,
advice
,
and
support
to
someone
with
less
experience
•
Julia's
mentor
helped
her
prepare
for
the
job
interview
.
Julia's
mentor
helped
her
prepare
for
the
job
interview
.
•
A
good
mentor
listens
before
giving
advice
.
A
good
mentor
listens
before
giving
advice
.
From
Mentor
,
the
name
of
the
wise
friend
of
Odysseus
who
guided
Telemachus
in
Greek
mythology
,
popularized
through
Homer
’
s
Odyssey
.
verb
-
mentor
,
mentoring
,
mentors
,
mentored
to
guide
,
teach
,
and
support
someone
less
experienced
over
a
period
of
time
•
Experienced
engineers
mentor
new
hires
during
their
first
year
.
Experienced
engineers
mentor
new
hires
during
their
first
year
.
•
She
promised
to
mentor
three
students
from
the
local
school
.
She
promised
to
mentor
three
students
from
the
local
school
.
Verb
use
developed
from
the
noun
sense
,
meaning
“
to
act
as
a
Mentor
.”
Mentor
noun
-
Mentor
the
friend
of
Odysseus
in
Greek
mythology
who
cared
for
Telemachus
and
whose
name
became
a
symbol
of
wise
guidance
•
In
Homer's
Odyssey
,
Mentor
looks
after
Telemachus
.
In
Homer's
Odyssey
,
Mentor
looks
after
Telemachus
.
•
Athena
disguises
herself
as
Mentor
to
guide
the
young
prince
.
Athena
disguises
herself
as
Mentor
to
guide
the
young
prince
.
Ancient
Greek
Μέντωρ
(
Méntōr
),
the
son
of
Alcimus
and
trusted
companion
of
Odysseus
,
appearing
in
Homer
’
s
Odyssey
.
contributor
noun
a
person
who
gives
money
,
time
,
or
other
help
to
support
a
cause
,
project
,
or
organization
•
Local
businesses
acted
as
generous
contributors
to
the
town
’
s
new
library
.
Local
businesses
acted
as
generous
contributors
to
the
town
’
s
new
library
.
•
The
online
fundraiser
quickly
reached
its
goal
after
hundreds
of
small
contributors
gave
five
dollars
each
.
The
online
fundraiser
quickly
reached
its
goal
after
hundreds
of
small
contributors
gave
five
dollars
each
.
from
Latin
‘
contribut-
’
meaning
‘
added
together
’,
via
the
verb
‘
contribute
’
+
the
agent
suffix
‘
-or
’
noun
a
person
who
writes
articles
,
photographs
,
or
other
content
for
a
newspaper
,
magazine
,
website
,
or
broadcast
,
often
without
being
a
full-time
staff
member
•
She
became
a
regular
contributor
to
the
science
section
of
the
newspaper
.
She
became
a
regular
contributor
to
the
science
section
of
the
newspaper
.
•
The
magazine
pays
each
freelance
contributor
per
published
photograph
.
The
magazine
pays
each
freelance
contributor
per
published
photograph
.
derived
from
the
sense
of
‘
contribute
’
meaning
‘
to
supply
written
material
’
in
the
late
19th
century
noun
something
that
helps
to
cause
a
particular
result
or
situation
•
Stress
is
a
key
contributor
to
many
health
problems
.
Stress
is
a
key
contributor
to
many
health
problems
.
•
Air
pollution
is
a
major
contributor
to
climate
change
.
Air
pollution
is
a
major
contributor
to
climate
change
.
extended
figurative
use
from
the
idea
of
a
person
‘
contributing
’,
first
recorded
in
the
mid-20th
century
inventory
noun
-
inventory
,
inventories
a
detailed
written
list
of
all
the
items
that
exist
in
a
particular
place
or
belong
to
a
particular
person
or
organization
•
Before
moving
,
the
couple
made
an
inventory
of
everything
inside
their
apartment
.
Before
moving
,
the
couple
made
an
inventory
of
everything
inside
their
apartment
.
•
The
museum
keeps
an
updated
inventory
of
its
artworks
to
track
their
condition
.
The
museum
keeps
an
updated
inventory
of
its
artworks
to
track
their
condition
.
late
Middle
English
:
from
medieval
Latin
inventorium
‘
list
’,
from
Latin
invenire
‘
to
find
’.
noun
-
inventory
,
inventories
the
goods
or
materials
that
a
business
keeps
available
for
sale
or
for
use
in
production
•
The
store
increased
its
inventory
of
winter
coats
before
the
cold
weather
arrived
.
The
store
increased
its
inventory
of
winter
coats
before
the
cold
weather
arrived
.
•
Holding
too
much
inventory
can
tie
up
a
company
’
s
cash
.
Holding
too
much
inventory
can
tie
up
a
company
’
s
cash
.
verb
-
inventory
,
inventorying
,
inventories
,
inventoried
to
make
a
detailed
list
of
all
the
items
in
a
place
and
record
their
quantity
or
condition
•
Each
evening
,
the
pharmacist
inventories
the
medicine
shelves
.
Each
evening
,
the
pharmacist
inventories
the
medicine
shelves
.
•
Volunteers
inventoried
every
tree
in
the
park
to
help
plan
maintenance
.
Volunteers
inventoried
every
tree
in
the
park
to
help
plan
maintenance
.
protester
noun
a
person
who
publicly
shows
opposition
to
something
they
think
is
wrong
or
unfair
,
often
by
marching
,
speaking
out
,
or
carrying
signs
•
The
protester
held
a
sign
that
read
"
Save
our
planet
"
during
the
climate
march
.
The
protester
held
a
sign
that
read
"
Save
our
planet
"
during
the
climate
march
.
•
A
lone
protester
stood
in
front
of
the
factory
gates
,
chanting
for
better
working
conditions
.
A
lone
protester
stood
in
front
of
the
factory
gates
,
chanting
for
better
working
conditions
.
from
protest
+
-er
,
first
recorded
in
the
18th
century
to
describe
someone
taking
part
in
a
protest
coordinator
noun
a
person
whose
job
is
to
arrange
people
,
tasks
,
or
resources
so
everything
works
smoothly
together
•
The
community
festival
ran
perfectly
because
the
coordinator
had
prepared
a
detailed
schedule
.
The
community
festival
ran
perfectly
because
the
coordinator
had
prepared
a
detailed
schedule
.
•
As
project
coordinator
,
Jason
made
sure
every
team
finished
its
part
before
the
deadline
.
As
project
coordinator
,
Jason
made
sure
every
team
finished
its
part
before
the
deadline
.
From
the
verb
coordinate
+
-or
,
meaning
“
one
who
coordinates
.”
noun
in
grammar
,
a
word
like
“
and
”, “
but
”,
or
“
or
”
that
joins
two
words
,
phrases
,
or
clauses
of
equal
importance
•
In
the
sentence
“
Tom
plays
football
and
Jane
swims
,” “
and
”
is
a
coordinator
.
In
the
sentence
“
Tom
plays
football
and
Jane
swims
,” “
and
”
is
a
coordinator
.
•
A
common
mistake
is
using
a
comma
before
a
single-word
coordinator
connecting
two
short
phrases
.
A
common
mistake
is
using
a
comma
before
a
single-word
coordinator
connecting
two
short
phrases
.
Adopted
in
linguistic
terminology
in
the
mid-20th
century
to
name
conjunctions
that
coordinate
sentence
parts
.
collector
noun
a
person
who
enjoys
gathering
and
keeping
a
particular
kind
of
object
as
a
hobby
•
The
collector
proudly
showed
his
rare
coin
album
to
his
friends
.
The
collector
proudly
showed
his
rare
coin
album
to
his
friends
.
•
At
the
flea
market
,
a
young
collector
hunted
for
vintage
comic
books
.
At
the
flea
market
,
a
young
collector
hunted
for
vintage
comic
books
.
From
Latin
‘
colligere
’
meaning
‘
to
gather
together
’,
through
Old
French
‘
collecteur
’.
noun
a
person
whose
job
is
to
gather
money
,
tickets
,
or
fees
from
the
public
•
The
bus
collector
walked
down
the
aisle
,
clipping
each
passenger
’
s
ticket
.
The
bus
collector
walked
down
the
aisle
,
clipping
each
passenger
’
s
ticket
.
•
A
tax
collector
visited
the
shop
to
review
last
quarter
’
s
records
.
A
tax
collector
visited
the
shop
to
review
last
quarter
’
s
records
.
Professional
use
recorded
since
the
15th
century
,
originally
referring
to
officials
gathering
taxes
.
noun
a
device
or
component
that
gathers
and
holds
a
particular
substance
or
electrical
charge
•
The
workshop
installed
a
new
dust collector
to
keep
the
air
clean
.
The
workshop
installed
a
new
dust collector
to
keep
the
air
clean
.
•
In
a
transistor
,
the
collector
receives
charge
carriers
from
the
base
region
.
In
a
transistor
,
the
collector
receives
charge
carriers
from
the
base
region
.
Applied
to
machinery
and
electronics
since
the
late
19th
century
,
extending
the
idea
of
‘
collecting
’
to
devices
.
predator
noun
an
animal
that
lives
by
hunting
and
eating
other
animals
•
The
predator
stalked
the
rabbit
through
the
tall
grass
.
The
predator
stalked
the
rabbit
through
the
tall
grass
.
•
Lions
are
apex predators
on
the
African
savanna
.
Lions
are
apex predators
on
the
African
savanna
.
from
Latin
praedator
“
plunderer
,
hunter
,”
from
praeda
“
prey
”
noun
a
person
or
organization
that
cruelly
exploits
,
harms
,
or
takes
advantage
of
others
•
The
online
predator
pretended
to
be
a
teenager
to
gain
the
child's
trust
.
The
online
predator
pretended
to
be
a
teenager
to
gain
the
child's
trust
.
•
Some
corporations
act
like
predators
by
buying
smaller
rivals
and
firing
their
employees
.
Some
corporations
act
like
predators
by
buying
smaller
rivals
and
firing
their
employees
.
figurative
extension
of
the
animal
sense
,
first
recorded
in
English
in
the
mid-20th
century