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understand
verb
-
understand
,
understanding
,
understands
,
understood
to
know
what
something
means
or
what
someone
is
saying
•
Do
you
understand
the
instructions
on
the
packet
?
Do
you
understand
the
instructions
on
the
packet
?
•
Lena
can
understand
French
,
but
she
feels
shy
about
speaking
it
.
Lena
can
understand
French
,
but
she
feels
shy
about
speaking
it
.
verb
-
understand
,
understanding
,
understands
,
understood
to
know
how
someone
feels
and
show
sympathy
•
I
understand
how
nervous
you
feel
before
the
test
.
I
understand
how
nervous
you
feel
before
the
test
.
•
Good
friends
understand
each
other
in
hard
times
.
Good
friends
understand
each
other
in
hard
times
.
verb
-
understand
,
understanding
,
understands
,
understood
to
think
or
believe
something
is
true
because
of
what
you
have
been
told
or
have
read
•
I
understand
that
the
meeting
has
been
moved
to
Friday
.
I
understand
that
the
meeting
has
been
moved
to
Friday
.
•
From
what
I
understand
,
the
movie
was
filmed
in
Spain
.
From
what
I
understand
,
the
movie
was
filmed
in
Spain
.
under
preposition
in
a
lower
position
than
someone
or
something
else
,
often
covered
or
sheltered
by
it
•
The
cat
is
hiding
under
the
sofa
to
stay
warm
.
The
cat
is
hiding
under
the
sofa
to
stay
warm
.
•
We
spread
the
picnic
blanket
under
a
shady
oak
tree
.
We
spread
the
picnic
blanket
under
a
shady
oak
tree
.
Old
English
‘
under
’
from
Proto-Germanic
*under
,
related
to
German
‘
unter
’
and
Dutch
‘
onder
’.
preposition
in
a
lower
position
than
or
covered
by
something
•
The
cat
hid
under
the
table
during
the
storm
.
The
cat
hid
under
the
table
during
the
storm
.
•
We
had
a
picnic
under
a
big
oak
tree
in
the
park
.
We
had
a
picnic
under
a
big
oak
tree
in
the
park
.
Old
English
“
under
”,
from
Proto-Germanic
*under
(
same
meaning
),
related
to
German
“
unter
”
and
Dutch
“
onder
”.
preposition
less
than
a
particular
amount
,
level
,
weight
,
or
age
•
Children
under
five
eat
for
free
at
the
museum
café
.
Children
under
five
eat
for
free
at
the
museum
café
.
•
The
water
level
is
under
two
meters
in
the
reservoir
.
The
water
level
is
under
two
meters
in
the
reservoir
.
preposition
less
than
a
particular
number
,
age
,
or
amount
•
Tickets
are
free
for
children
under
five
.
Tickets
are
free
for
children
under
five
.
•
You
must
drive
under
50
kilometers
per
hour
on
this
road
.
You
must
drive
under
50
kilometers
per
hour
on
this
road
.
preposition
controlled
,
managed
,
or
governed
by
someone
or
something
•
The
island
was
under
French
control
for
decades
.
The
island
was
under
French
control
for
decades
.
•
All
soldiers
must
act
under
the
orders
of
their
commander
.
All
soldiers
must
act
under
the
orders
of
their
commander
.
preposition
experiencing
or
affected
by
something
such
as
pressure
,
treatment
,
or
a
process
•
She
is
under
great
pressure
before
the
exam
.
She
is
under
great
pressure
before
the
exam
.
•
The
building
is
currently
under
repair
.
The
building
is
currently
under
repair
.
adverb
to
or
in
a
position
below
or
beneath
something
•
The
diver
slipped
under
and
disappeared
from
view
.
The
diver
slipped
under
and
disappeared
from
view
.
•
She
ducked
under
to
avoid
the
low-hanging
branch
.
She
ducked
under
to
avoid
the
low-hanging
branch
.
preposition
experiencing
,
controlled
by
,
or
in
the
state
of
something
•
The
city
is
under
attack
from
heavy
rain
and
winds
.
The
city
is
under
attack
from
heavy
rain
and
winds
.
•
Our
house
is
under
construction
,
so
we
are
staying
with
friends
.
Our
house
is
under
construction
,
so
we
are
staying
with
friends
.
preposition
according
to
or
defined
by
a
particular
law
,
rule
,
category
,
or
heading
•
He
was
arrested
under
the
new
cybercrime
law
.
He
was
arrested
under
the
new
cybercrime
law
.
•
Wolves
are
protected
under
endangered
species
regulations
.
Wolves
are
protected
under
endangered
species
regulations
.
adverb
to
or
in
a
position
below
the
surface
or
lower
level
•
The
submarine
slipped
under
and
vanished
from
sight
.
The
submarine
slipped
under
and
vanished
from
sight
.
•
The
treasure
chest
was
buried
deep
under
.
The
treasure
chest
was
buried
deep
under
.
understanding
noun
knowledge
or
clear
insight
about
how
something
works
or
what
something
means
•
Maria
showed
a
deep
understanding
of
the
math
problem
during
class
.
Maria
showed
a
deep
understanding
of
the
math
problem
during
class
.
•
Reading
books
about
other
cultures
can
widen
our
understanding
of
the
world
.
Reading
books
about
other
cultures
can
widen
our
understanding
of
the
world
.
From
the
verb
"
understand
"
+
the
suffix
"
-ing
",
first
recorded
in
Old
English
as
a
noun
meaning
"
comprehension
".
noun
an
informal
agreement
or
arrangement
between
people
or
groups
•
We
have
an
understanding
that
I
will
water
her
plants
while
she
is
away
.
We
have
an
understanding
that
I
will
water
her
plants
while
she
is
away
.
•
The
two
companies
reached
an
understanding
to
share
technology
.
The
two
companies
reached
an
understanding
to
share
technology
.
Developed
from
the
broader
sense
of
"
comprehension
"
to
mean
"
agreement
"
in
the
late
17th
century
,
emphasizing
shared
knowledge
between
parties
.
adjective
sympathetic
and
willing
to
forgive
or
consider
someone
’
s
feelings
•
The
understanding
teacher
gave
the
student
extra
time
to
finish
the
test
.
The
understanding
teacher
gave
the
student
extra
time
to
finish
the
test
.
•
Her
friends
were
very
understanding
when
she
had
to
cancel
the
trip
.
Her
friends
were
very
understanding
when
she
had
to
cancel
the
trip
.
Adjective
use
recorded
from
the
early
1600s
,
shifting
from
the
participial
sense
of
"
one
who
understands
"
to
a
quality
of
empathy
.
undergo
verb
-
undergo
,
undergoing
,
undergoes
,
underwent
,
undergone
to
experience
or
be
subjected
to
a
process
,
test
,
change
,
or
something
often
difficult
or
unpleasant
•
The
old
mansion
will
undergo
major
renovations
next
year
.
The
old
mansion
will
undergo
major
renovations
next
year
.
•
After
the
accident
,
she
had
to
undergo
several
surgeries
to
recover
.
After
the
accident
,
she
had
to
undergo
several
surgeries
to
recover
.
Middle
English
undergoon
,
from
under
+
go
,
originally
meaning
“
undertake
”
or
“
go
among
difficulties
.”
find
verb
-
find
,
finding
,
finds
,
found
to
discover
or
locate
something
that
is
lost
,
hidden
,
or
not
yet
known
•
After
searching
for
an
hour
,
he
found
his
missing
wallet
under
the
sofa
.
After
searching
for
an
hour
,
he
found
his
missing
wallet
under
the
sofa
.
•
Use
this
app
to
find
the
nearest
café
.
Use
this
app
to
find
the
nearest
café
.
Old
English
findan
“
come
upon
,
discover
,”
from
Proto-Germanic
*finthan
.
verb
-
find
,
finding
,
finds
,
found
to
experience
or
come
to
hold
a
particular
opinion
or
feeling
about
something
•
I
find
this
movie
hilarious
every
time
I
watch
it
.
I
find
this
movie
hilarious
every
time
I
watch
it
.
•
She
found
the
exam
surprisingly
easy
.
She
found
the
exam
surprisingly
easy
.
verb
-
find
,
finding
,
finds
,
found
(
law
)
for
a
judge
or
jury
to
decide
or
declare
a
particular
result
after
considering
evidence
•
The
jury
found
the
defendant
guilty
of
fraud
.
The
jury
found
the
defendant
guilty
of
fraud
.
•
The
court
found
that
the
company
had
breached
its
contract
.
The
court
found
that
the
company
had
breached
its
contract
.
around
preposition
on
every
side
of
someone
or
something
;
surrounding
it
•
A
white
picket
fence
ran
around
the
small
cottage
.
A
white
picket
fence
ran
around
the
small
cottage
.
•
She
wore
a
scarf
around
her
neck
to
keep
warm
.
She
wore
a
scarf
around
her
neck
to
keep
warm
.
adverb
from
one
place
to
another
within
an
area
;
here
and
there
•
Tourists
wandered
around
taking
pictures
of
the
old
buildings
.
Tourists
wandered
around
taking
pictures
of
the
old
buildings
.
•
The
dog
ran
around
happily
in
the
park
.
The
dog
ran
around
happily
in
the
park
.
adverb
used
before
a
number
,
time
,
or
amount
to
mean
close
to
but
not
exactly
•
The
movie
starts
at
around
eight
o
’
clock
.
The
movie
starts
at
around
eight
o
’
clock
.
•
It
costs
around
fifty
dollars
to
repair
the
bike
.
It
costs
around
fifty
dollars
to
repair
the
bike
.
preposition
on
every
side
of
someone
or
something
,
surrounding
it
•
A
white
picket
fence
ran
around
the
cozy
cottage
.
A
white
picket
fence
ran
around
the
cozy
cottage
.
•
She
wrapped
a
soft
wool
scarf
around
her
neck
to
stay
warm
.
She
wrapped
a
soft
wool
scarf
around
her
neck
to
stay
warm
.
preposition
in
or
to
many
different
parts
of
a
place
•
We
spent
the
afternoon
walking
around
the
city
.
We
spent
the
afternoon
walking
around
the
city
.
•
He
sailed
around
the
world
in
a
small
boat
.
He
sailed
around
the
world
in
a
small
boat
.
preposition
approximately
,
close
to
a
certain
number
,
amount
,
or
time
•
I'll
arrive
around
three
o'clock
.
I'll
arrive
around
three
o'clock
.
•
The
repairs
will
cost
around
fifty
dollars
.
The
repairs
will
cost
around
fifty
dollars
.
adverb
present
in
a
place
;
nearby
•
Is
your
brother
around
this
afternoon
?
Is
your
brother
around
this
afternoon
?
•
There
were
no
taxis
around
when
we
left
the
theater
.
There
were
no
taxis
around
when
we
left
the
theater
.
preposition
in
many
different
parts
of
a
large
area
•
He
travelled
around
the
world
for
a
year
.
He
travelled
around
the
world
for
a
year
.
•
News
spread
around
the
town
quickly
.
News
spread
around
the
town
quickly
.
adverb
present
,
nearby
,
or
available
in
a
place
•
Is
your
brother
around
this
evening
?
Is
your
brother
around
this
evening
?
•
There
are
plenty
of
cafés
around
if
you're
hungry
.
There
are
plenty
of
cafés
around
if
you're
hungry
.
adverb
from
one
person
or
place
to
others
,
in
circulation
•
Please
pass
the
photos
around
so
everyone
can
see
them
.
Please
pass
the
photos
around
so
everyone
can
see
them
.
•
The
news
spread
around
quickly
after
the
meeting
.
The
news
spread
around
quickly
after
the
meeting
.
adverb
existing
,
in
existence
or
active
,
especially
for
a
long
time
•
That
melody
has
been
around
for
decades
.
That
melody
has
been
around
for
decades
.
•
Electric
cars
have
been
around
longer
than
most
people
think
.
Electric
cars
have
been
around
longer
than
most
people
think
.
fund
noun
money
that
is
saved
or
collected
for
a
special
purpose
•
Maria
puts
a
little
money
into
a
college
fund
every
month
.
Maria
puts
a
little
money
into
a
college
fund
every
month
.
•
The
village
set
up
an
emergency
fund
after
the
flood
.
The
village
set
up
an
emergency
fund
after
the
flood
.
From
Latin
fundus
“
bottom
,
foundation
”,
later
meaning
“
store
of
money
”.
verb
-
fund
,
funding
,
funds
,
funded
to
provide
the
money
needed
to
pay
for
something
•
The
government
will
fund
the
new
hospital
.
The
government
will
fund
the
new
hospital
.
•
Local
businesses
helped
fund
the
sports
festival
.
Local
businesses
helped
fund
the
sports
festival
.
noun
money
that
is
available
to
be
spent
•
We
can't
buy
new
equipment
because
the
school
funds
are
low
.
We
can't
buy
new
equipment
because
the
school
funds
are
low
.
•
After
paying
the
bills
,
there
were
no
funds
left
for
a
holiday
.
After
paying
the
bills
,
there
were
no
funds
left
for
a
holiday
.
noun
an
organization
or
account
that
holds
and
invests
money
for
people
or
projects
•
The
retirement
fund
grew
by
8%
last
year
.
The
retirement
fund
grew
by
8%
last
year
.
•
They
invested
in
a
technology
fund
focused
on
green
energy
.
They
invested
in
a
technology
fund
focused
on
green
energy
.
sound
noun
-
sound
,
sounding
,
sounds
,
sounded
something
that
can
be
heard
;
vibrations
that
travel
through
air
,
water
,
or
another
medium
and
reach
the
ear
•
The
gentle
sound
of
the
rain
helped
him
fall
asleep
.
The
gentle
sound
of
the
rain
helped
him
fall
asleep
.
•
Everyone
covered
their
ears
when
the
fire
alarm
sound
blared
.
Everyone
covered
their
ears
when
the
fire
alarm
sound
blared
.
Old
English
“
sund
”
meaning
‘
noise
’,
from
Latin
“
sonus
”.
noun
-
sound
,
sounder
,
soundest
something
that
you
can
hear
,
created
when
vibrations
travel
through
air
,
water
,
or
another
substance
to
your
ear
•
The
baby
woke
up
when
a
loud
sound
came
from
the
kitchen
.
The
baby
woke
up
when
a
loud
sound
came
from
the
kitchen
.
•
On
the
camping
trip
,
we
enjoyed
the
gentle
sounds
of
crickets
under
the
stars
.
On
the
camping
trip
,
we
enjoyed
the
gentle
sounds
of
crickets
under
the
stars
.
verb
-
sound
,
sounding
,
sounds
,
sounded
to
make
or
produce
a
noise
•
The
trumpet
sound
loudly
at
the
start
of
the
ceremony
.
The
trumpet
sound
loudly
at
the
start
of
the
ceremony
.
•
When
the
bell
sound
at
noon
,
workers
left
for
lunch
.
When
the
bell
sound
at
noon
,
workers
left
for
lunch
.
verb
to
make
or
produce
a
particular
noise
,
or
to
be
heard
in
a
particular
way
•
The
fire
alarm
sounded
across
the
whole
building
.
The
fire
alarm
sounded
across
the
whole
building
.
•
When
he
plucked
the
guitar
string
,
it
sounded
perfect
.
When
he
plucked
the
guitar
string
,
it
sounded
perfect
.
verb
-
sound
,
sounding
,
sounds
,
sounded
to
seem
or
give
a
particular
impression
when
heard
•
You
sound
excited
about
the
trip
!
You
sound
excited
about
the
trip
!
•
Her
explanation
sound
reasonable
to
everyone
in
the
meeting
.
Her
explanation
sound
reasonable
to
everyone
in
the
meeting
.
adjective
-
sound
,
sounder
,
soundest
in
good
condition
,
strong
,
or
likely
to
work
well
without
failing
•
The
bridge
remained
sound
after
the
storm
.
The
bridge
remained
sound
after
the
storm
.
•
She
made
a
sound
decision
based
on
the
facts
.
She
made
a
sound
decision
based
on
the
facts
.
adjective
-
sound
,
sounding
,
sounds
,
sounded
,
sounder
,
soundest
in
good
condition
;
healthy
,
safe
,
or
reliable
•
The
bridge
is
old
,
but
engineers
say
it
is
still
sound
.
The
bridge
is
old
,
but
engineers
say
it
is
still
sound
.
•
She
gave
me
some
sound
advice
about
saving
money
.
She
gave
me
some
sound
advice
about
saving
money
.
noun
a
long
,
narrow
stretch
of
sea
or
ocean
water
that
lies
between
two
pieces
of
land
•
The
ferry
crossed
the
sound
in
thirty
minutes
.
The
ferry
crossed
the
sound
in
thirty
minutes
.
•
From
the
cliff
,
we
watched
small
boats
drifting
across
the
sound
.
From
the
cliff
,
we
watched
small
boats
drifting
across
the
sound
.
noun
-
sound
,
sounding
,
sounds
,
sounded
a
long
,
wide
stretch
of
seawater
between
the
mainland
and
an
island
or
between
two
larger
bodies
of
water
•
They
sailed
across
Puget
Sound
at
sunrise
.
They
sailed
across
Puget
Sound
at
sunrise
.
•
The
ferry
crosses
the
sound
several
times
a
day
.
The
ferry
crosses
the
sound
several
times
a
day
.
From
Old
Norse
“
sund
”
meaning
‘
swimming
,
strait
’.
ground
noun
the
solid
surface
of
the
earth
that
we
stand
,
walk
,
or
lie
on
•
The
dog
lay
on
the
cool
ground
under
the
tree
.
The
dog
lay
on
the
cool
ground
under
the
tree
.
•
After
the
rain
,
the
ground
was
muddy
and
slippery
.
After
the
rain
,
the
ground
was
muddy
and
slippery
.
Old
English
“
grund
”
meaning
bottom
or
foundation
,
later
broadening
to
the
surface
of
the
earth
.
noun
a
reason
or
cause
for
believing
,
saying
,
or
doing
something
(
often
used
in
the
plural
“
grounds
”)
•
The
judge
found
no
grounds
to
reopen
the
case
.
The
judge
found
no
grounds
to
reopen
the
case
.
•
Maria
had
good
grounds
for
suspicion
when
she
saw
the
broken
lock
.
Maria
had
good
grounds
for
suspicion
when
she
saw
the
broken
lock
.
Extended
from
the
idea
of
something
solid
that
supports
weight
to
something
that
supports
an
argument
or
action
.
noun
a
wire
or
other
connection
that
safely
carries
electricity
into
the
earth
to
prevent
shocks
•
The
electrician
attached
the
green
wire
to
the
ground
.
The
electrician
attached
the
green
wire
to
the
ground
.
•
Without
a
proper
ground
,
the
metal
case
could
become
dangerous
.
Without
a
proper
ground
,
the
metal
case
could
become
dangerous
.
Adopted
in
the
19th-century
telegraph
industry
,
using
the
earth
itself
as
the
return
path
for
electric
current
.
verb
-
ground
,
grounding
,
grounds
,
grounded
to
punish
a
child
or
teenager
by
not
allowing
them
to
go
out
or
enjoy
certain
activities
for
a
period
of
time
•
Mom
grounded
Tim
for
a
week
after
he
broke
the
window
.
Mom
grounded
Tim
for
a
week
after
he
broke
the
window
.
•
If
you
ever
skip
school
again
,
I
will
ground
you
.
If
you
ever
skip
school
again
,
I
will
ground
you
.
First
recorded
in
U
.
S
.
English
in
the
19th
century
,
likening
the
child
to
an
aircraft
kept
on
the
ground
and
not
allowed
to
take
off
.
verb
-
ground
,
grounding
,
grounds
,
grounded
to
stop
an
aircraft
from
flying
,
or
to
stop
something/someone
from
moving
or
operating
•
The
storm
grounded
all
flights
from
the
island
.
The
storm
grounded
all
flights
from
the
island
.
•
Mechanical
problems
can
ground
a
plane
for
hours
.
Mechanical
problems
can
ground
a
plane
for
hours
.
Early
20th-century
aviation
term
:
to
keep
a
plane
on
the
ground
for
safety
or
mechanical
reasons
.
verb
-
ground
,
grounding
,
grounds
,
grounded
to
base
an
opinion
,
idea
,
or
action
firmly
on
something
solid
or
reliable
•
The
teacher
asked
us
to
ground
our
arguments
in
real
evidence
.
The
teacher
asked
us
to
ground
our
arguments
in
real
evidence
.
•
His
novel
is
grounded
in
true
historical
events
.
His
novel
is
grounded
in
true
historical
events
.
Metaphorically
extended
from
something
resting
on
the
physical
ground
to
ideas
resting
on
solid
facts
.
Sunday
noun
the
day
of
the
week
that
comes
after
Saturday
and
before
Monday
•
We
went
hiking
last
Sunday
because
the
weather
was
perfect
.
We
went
hiking
last
Sunday
because
the
weather
was
perfect
.
•
On
Sunday
,
many
families
eat
breakfast
together
.
On
Sunday
,
many
families
eat
breakfast
together
.
Old
English
“
Sunnandæg
,”
literally
“
day
of
the
sun
,”
translating
Latin
“
dies
Solis
.”
adverb
on
Sunday
;
used
without
the
preposition
“
on
”
to
say
when
something
happens
•
Let's
meet
Sunday
at
the
coffee
shop
around
noon
.
Let's
meet
Sunday
at
the
coffee
shop
around
noon
.
•
The
museum
opens
Sunday
at
ten
o'clock
.
The
museum
opens
Sunday
at
ten
o'clock
.
Adverbial
use
developed
from
the
noun
by
omitting
the
preposition
“
on
.”
foundation
noun
the
solid
base
,
usually
made
of
concrete
,
that
supports
a
building
or
other
structure
and
keeps
it
stable
•
The
workers
waited
for
the
concrete
foundation
to
harden
before
they
started
laying
bricks
.
The
workers
waited
for
the
concrete
foundation
to
harden
before
they
started
laying
bricks
.
•
During
the
earthquake
,
the
old
cabin
shifted
because
its
wooden
foundation
was
weak
.
During
the
earthquake
,
the
old
cabin
shifted
because
its
wooden
foundation
was
weak
.
From
Middle
English
fundacioun
,
from
Old
French
fondation
,
from
Latin
fundātiō
meaning
“
a
founding
,
laying
of
a
base
,”
from
fundāre
“
to
lay
the
base
”
noun
the
basic
principle
,
idea
,
or
fact
that
something
is
built
on
or
starts
from
•
Honesty
is
the
foundation
of
a
strong
friendship
.
Honesty
is
the
foundation
of
a
strong
friendship
.
•
Mathematics
forms
the
foundation
for
many
modern
technologies
.
Mathematics
forms
the
foundation
for
many
modern
technologies
.
noun
-
foundation
a
skin-colored
cosmetic
cream
or
powder
spread
over
the
face
to
create
an
even
tone
before
applying
other
makeup
•
She
applied
a
light
layer
of
foundation
to
cover
her
freckles
.
She
applied
a
light
layer
of
foundation
to
cover
her
freckles
.
•
The
actor
’
s
heavy
stage
lights
required
a
thicker
foundation
.
The
actor
’
s
heavy
stage
lights
required
a
thicker
foundation
.
noun
an
organization
that
is
created
and
given
money
to
support
a
particular
cause
,
study
,
or
charity
•
The
medical
foundation
donated
new
equipment
to
the
children
’
s
hospital
.
The
medical
foundation
donated
new
equipment
to
the
children
’
s
hospital
.
•
He
set
up
a
private
foundation
to
fund
scholarships
for
local
students
.
He
set
up
a
private
foundation
to
fund
scholarships
for
local
students
.
hundred
adjective
the
number
100
,
equal
to
ten
times
ten
•
One
hundred
students
filled
the
auditorium
for
the
ceremony
.
One
hundred
students
filled
the
auditorium
for
the
ceremony
.
•
Can
you
count
to
hundred
in
English
?
Can
you
count
to
hundred
in
English
?
Old
English
hundred
‘
group
of
100
’,
from
hund
‘
hundred
’
+
red
‘
reckoning
’.
adjective
the
number
100
•
Sam
proudly
counted
to
hundred
without
making
a
mistake
.
Sam
proudly
counted
to
hundred
without
making
a
mistake
.
•
There
are
exactly
hundred
years
in
a
century
.
There
are
exactly
hundred
years
in
a
century
.
noun
a
group
or
unit
of
one
hundred
things
,
people
,
or
money
units
•
He
withdrew
a
hundred
from
the
ATM
to
pay
the
rent
.
He
withdrew
a
hundred
from
the
ATM
to
pay
the
rent
.
•
Please
tie
the
straws
into
bundles
of
a
hundred
.
Please
tie
the
straws
into
bundles
of
a
hundred
.
Same
origin
as
the
numeral
sense
:
Old
English
hundred
‘
group
of
100
’.
noun
a
collection
or
unit
of
one
hundred
things
,
people
,
or
years
•
The
factory
produced
a
hundred
bicycles
in
one
day
.
The
factory
produced
a
hundred
bicycles
in
one
day
.
•
He
bought
a
hundred
stamps
for
his
collection
.
He
bought
a
hundred
stamps
for
his
collection
.
noun
(
historical
)
in
medieval
England
,
a
subdivision
of
a
county
used
for
local
administration
and
justice
•
In
Saxon
times
,
each
hundred
held
its
own
court
.
In
Saxon
times
,
each
hundred
held
its
own
court
.
•
The
village
once
belonged
to
the
Somerton
hundred
of
Somerset
.
The
village
once
belonged
to
the
Somerton
hundred
of
Somerset
.
wind
verb
-
wind
,
winding
,
winds
,
wound
to
turn
or
twist
something
around
and
around
,
or
to
turn
a
handle
or
key
to
make
a
device
work
•
Could
you
wind
the
music
box
for
the
baby
?
Could
you
wind
the
music
box
for
the
baby
?
•
He
carefully
wound
the
scarf
around
his
neck
.
He
carefully
wound
the
scarf
around
his
neck
.
Old
English
“
windan
”
meaning
‘
to
twist
or
turn
’;
related
to
German
“
winden
”.
verb
-
wind
,
winding
,
winds
,
wound
to
move
or
curve
in
a
twisting
,
indirect
way
•
A
narrow
path
winds
through
the
dense
bamboo
forest
.
A
narrow
path
winds
through
the
dense
bamboo
forest
.
•
The
river
wound
lazily
across
the
plain
toward
the
sea
.
The
river
wound
lazily
across
the
plain
toward
the
sea
.
Same
Old
English
source
as
the
turning
verb
sense
,
extended
to
describe
twisting
motion
of
objects
and
routes
.
background
noun
the
part
of
a
scene
or
picture
that
is
farthest
from
the
viewer
and
not
the
main
focus
•
Snowy
mountains
rose
in
the
background
of
the
holiday
photo
.
Snowy
mountains
rose
in
the
background
of
the
holiday
photo
.
•
A
small
boat
drifted
past
while
the
city
skyline
shimmered
in
the
background
.
A
small
boat
drifted
past
while
the
city
skyline
shimmered
in
the
background
.
noun
quiet
sound
,
music
,
or
noise
that
is
present
but
not
the
main
focus
•
Soft
jazz
played
in
the
background
while
we
ate
dinner
.
Soft
jazz
played
in
the
background
while
we
ate
dinner
.
•
He
likes
to
keep
the
TV
on
in
the
background
when
he
studies
.
He
likes
to
keep
the
TV
on
in
the
background
when
he
studies
.
noun
a
person
’
s
past
experiences
,
education
,
or
family
that
shapes
who
they
are
•
Despite
her
poor
background
,
Maria
became
a
successful
engineer
.
Despite
her
poor
background
,
Maria
became
a
successful
engineer
.
•
We
want
candidates
with
a
strong
science
background
.
We
want
candidates
with
a
strong
science
background
.
noun
the
general
situation
or
conditions
in
which
something
happens
and
that
helps
explain
it
•
The
speech
came
against
a
background
of
rising
unemployment
.
The
speech
came
against
a
background
of
rising
unemployment
.
•
To
understand
the
conflict
,
you
need
some
historical
background
.
To
understand
the
conflict
,
you
need
some
historical
background
.
noun
computer
programs
or
processes
that
keep
running
while
you
work
on
something
else
and
do
not
appear
on
the
main
screen
•
The
antivirus
program
runs
in
the
background
so
you
never
notice
it
.
The
antivirus
program
runs
in
the
background
so
you
never
notice
it
.
•
Too
many
background
apps
can
drain
your
phone
battery
.
Too
many
background
apps
can
drain
your
phone
battery
.
pound
noun
-
study
,
studying
,
studies
,
studied
,
happy
,
happier
,
happiest
a
unit
of
weight
equal
to
16
ounces
,
or
about
0
.
454
kilograms
•
The
recipe
calls
for
one
pound
of
strawberries
.
The
recipe
calls
for
one
pound
of
strawberries
.
•
He
lost
five
pounds
after
a
week
of
hiking
.
He
lost
five
pounds
after
a
week
of
hiking
.
From
Old
English
“
pund
,”
ultimately
from
Latin
“
pōndo
” (
by
weight
).
surround
verb
to
be
or
place
itself
on
every
side
of
a
person
,
place
,
or
thing
so
that
it
is
enclosed
or
encircled
•
Tall
pine
trees
surround
the
cabin
,
giving
it
a
peaceful
,
hidden
feeling
.
Tall
pine
trees
surround
the
cabin
,
giving
it
a
peaceful
,
hidden
feeling
.
•
The
police
officers
surrounded
the
bank
to
make
sure
no
one
could
escape
.
The
police
officers
surrounded
the
bank
to
make
sure
no
one
could
escape
.
From
Middle
English
suronen
,
borrowed
from
Old
French
soronder
,
based
on
sur-
“
over
”
+
Latin
undare
“
to
flow
”.
noun
a
border
,
frame
,
or
decorative
edging
that
goes
all
the
way
around
something
such
as
a
fireplace
,
door
,
or
picture
•
The
marble
surround
of
the
fireplace
makes
the
whole
room
look
grand
.
The
marble
surround
of
the
fireplace
makes
the
whole
room
look
grand
.
•
They
chose
a
gold
surround
for
the
family
portrait
to
match
the
room
’
s
decor
.
They
chose
a
gold
surround
for
the
family
portrait
to
match
the
room
’
s
decor
.
Derived
from
the
verb
“
surround
”,
referring
to
something
that
goes
around
an
object
.
funding
noun
-
funding
money
that
is
provided
or
available
to
pay
for
a
particular
purpose
•
The
museum
received
government
funding
to
restore
the
ancient
paintings
.
The
museum
received
government
funding
to
restore
the
ancient
paintings
.
•
Without
enough
funding
,
the
project
had
to
be
delayed
.
Without
enough
funding
,
the
project
had
to
be
delayed
.
verb
present
participle
of
fund
:
providing
the
money
needed
for
something
•
They
are
funding
a
new
community
center
in
the
neighborhood
.
They
are
funding
a
new
community
center
in
the
neighborhood
.
•
The
bank
is
funding
small
businesses
to
stimulate
the
local
economy
.
The
bank
is
funding
small
businesses
to
stimulate
the
local
economy
.
round
adjective
-
round
,
rounder
,
roundest
shaped
like
a
circle
or
ball
•
The
baby
’
s
cheeks
are
soft
and
round
.
The
baby
’
s
cheeks
are
soft
and
round
.
•
They
drew
a
big
round
sun
in
the
sky
with
yellow
chalk
.
They
drew
a
big
round
sun
in
the
sky
with
yellow
chalk
.
Old
English
“
rund
”
from
Latin
“
rotundus
,”
meaning
‘
circular
’.
preposition
on
every
side
of
,
surrounding
,
or
along
the
edge
of
something
;
synonym
of
"
around
"
•
They
sat
round
the
campfire
telling
stories
.
They
sat
round
the
campfire
telling
stories
.
•
A
fence
was
built
round
the
garden
to
keep
rabbits
out
.
A
fence
was
built
round
the
garden
to
keep
rabbits
out
.
Shortened
form
of
“
around
,”
common
in
British
English
since
Middle
English
period
.
adverb
-
round
,
rounder
,
roundest
in
a
circular
movement
or
to
different
places
;
synonym
of
"
around
"
•
The
Earth
moves
round
the
Sun
.
The
Earth
moves
round
the
Sun
.
•
She
looked
round
nervously
but
saw
nothing
unusual
.
She
looked
round
nervously
but
saw
nothing
unusual
.
Adverbial
use
from
the
preposition
,
recorded
since
Middle
English
.
noun
one
stage
or
part
in
a
series
,
especially
in
a
game
,
contest
,
or
set
of
activities
•
She
reached
the
final
round
of
the
tennis
tournament
.
She
reached
the
final
round
of
the
tennis
tournament
.
•
The
quiz
had
three
rounds
,
and
the
questions
got
harder
each
time
.
The
quiz
had
three
rounds
,
and
the
questions
got
harder
each
time
.
Sense
evolved
in
18th
c
.
prize-fighting
for
each
turn
of
fighting
,
then
extended
to
games
and
contests
.
noun
a
set
of
drinks
bought
for
everyone
in
a
group
,
with
each
person
taking
a
turn
to
pay
•
It
was
my
turn
to
buy
the
next
round
at
the
pub
.
It
was
my
turn
to
buy
the
next
round
at
the
pub
.
•
They
ordered
another
round
of
coffees
during
the
meeting
.
They
ordered
another
round
of
coffees
during
the
meeting
.
From
the
idea
of
drinks
‘
going
round
’
the
group
,
first
recorded
in
19th-century
British
pubs
.
verb
-
round
,
rounding
,
rounds
,
rounded
to
move
in
or
cause
to
move
in
a
curve
or
around
something
;
to
make
something
curved
or
smoother
•
The
car
rounded
the
sharp
bend
carefully
.
The
car
rounded
the
sharp
bend
carefully
.
•
She
used
sandpaper
to
round
the
edges
of
the
wooden
box
.
She
used
sandpaper
to
round
the
edges
of
the
wooden
box
.
Old
English
“
rundian
”
meaning
‘
make
round
’,
influenced
by
French
“
rondir
”.
fundamental
adjective
forming
the
basic
and
most
important
part
of
something
•
Understanding
the
water
cycle
is
fundamental
to
grasping
how
weather
works
.
Understanding
the
water
cycle
is
fundamental
to
grasping
how
weather
works
.
•
Trust
is
fundamental
in
any
strong
friendship
.
Trust
is
fundamental
in
any
strong
friendship
.
From
late
Latin
fundamentalis
“
of
the
foundation
”,
from
Latin
fundamentum
“
foundation
”.
noun
a
basic
principle
,
rule
,
or
fact
that
is
essential
to
understanding
something
•
Before
learning
algebra
,
you
must
master
the
fundamentals
of
basic
arithmetic
.
Before
learning
algebra
,
you
must
master
the
fundamentals
of
basic
arithmetic
.
•
The
professor
began
the
biology
course
by
explaining
the
fundamental
of
cell
theory
.
The
professor
began
the
biology
course
by
explaining
the
fundamental
of
cell
theory
.
same
as
adjective
sense
noun
the
lowest
natural
frequency
at
which
something
vibrates
,
producing
the
main
pitch
of
a
sound
•
The
fundamental
of
the
note
A
is
440
hertz
.
The
fundamental
of
the
note
A
is
440
hertz
.
•
You
can
hear
the
overtones
as
well
as
the
fundamental
when
the
guitar
string
is
plucked
.
You
can
hear
the
overtones
as
well
as
the
fundamental
when
the
guitar
string
is
plucked
.
technical
extension
of
the
general
noun
sense
to
acoustics
and
physics
bind
verb
-
bind
,
binding
,
binds
,
bound
to
tie
or
hold
something
tightly
with
rope
,
string
,
or
another
material
so
it
cannot
move
•
She
used
a
scarf
to
bind
the
newspapers
into
a
neat
bundle
.
She
used
a
scarf
to
bind
the
newspapers
into
a
neat
bundle
.
•
The
firefighter
quickly
bound
the
victim
’
s
arm
to
stop
the
bleeding
.
The
firefighter
quickly
bound
the
victim
’
s
arm
to
stop
the
bleeding
.
Old
English
"
bindan
",
of
Germanic
origin
,
related
to
Dutch
"
binden
"
and
German
"
binden
",
meaning
“
to
tie
”.
verb
-
bind
,
binding
,
binds
,
bound
to
make
someone
legally
or
morally
required
to
do
something
•
The
contract
binds
both
parties
to
finish
the
work
by
July
.
The
contract
binds
both
parties
to
finish
the
work
by
July
.
•
He
felt
bound
by
his
promise
to
help
his
friend
move
.
He
felt
bound
by
his
promise
to
help
his
friend
move
.
verb
-
bind
,
binding
,
binds
,
bound
to
fasten
the
pages
of
a
book
together
and
attach
a
cover
•
The
printer
will
bind
the
reports
before
tomorrow's
meeting
.
The
printer
will
bind
the
reports
before
tomorrow's
meeting
.
•
She
learned
how
to
bind
her
own
notebooks
in
art
class
.
She
learned
how
to
bind
her
own
notebooks
in
art
class
.
founder
noun
a
person
who
starts
an
organization
,
company
,
city
,
or
other
institution
•
Sara
is
the
founder
of
a
successful
tech
startup
.
Sara
is
the
founder
of
a
successful
tech
startup
.
•
The
school's
founder
donated
the
land
for
the
campus
.
The
school's
founder
donated
the
land
for
the
campus
.
Middle
English
:
from
Old
French
fondeur
,
from
fonder
‘
to
lay
the
bottom
,
establish
’,
from
Latin
fundare
‘
to
found
’.
noun
a
skilled
worker
who
melts
and
pours
metal
into
molds
to
create
castings
•
The
founder
poured
molten
bronze
into
the
bell
mold
.
The
founder
poured
molten
bronze
into
the
bell
mold
.
•
During
the
workshop
tour
,
students
watched
a
founder
shape
a
new
sculpture
.
During
the
workshop
tour
,
students
watched
a
founder
shape
a
new
sculpture
.
Derived
from
the
sense
‘
one
who
founds
(
melts
)
metal
’,
first
recorded
in
late
Middle
English
.
verb
(
of
a
ship
or
boat
)
to
fill
with
water
and
sink
•
The
old
fishing
boat
began
to
founder
in
the
rough
sea
.
The
old
fishing
boat
began
to
founder
in
the
rough
sea
.
•
Without
warning
,
the
yacht
foundered
a
mile
from
shore
.
Without
warning
,
the
yacht
foundered
a
mile
from
shore
.
Early
17th
century
:
from
French
fondrer
‘
submerge
,
sink
’,
from
fond
‘
bottom
’.
verb
to
fail
completely
or
break
down
after
a
promising
start
•
Their
grand
project
foundered
when
funding
dried
up
.
Their
grand
project
foundered
when
funding
dried
up
.
•
Peace
talks
will
founder
unless
both
sides
compromise
.
Peace
talks
will
founder
unless
both
sides
compromise
.
Figurative
extension
of
the
nautical
sense
‘
sink
’
to
the
idea
of
plans
or
efforts
collapsing
.
noun
-
founder
a
painful
hoof
disease
in
horses
and
other
hoofed
animals
,
also
called
laminitis
•
The
vet
diagnosed
the
pony
with
founder
after
examining
its
hooves
.
The
vet
diagnosed
the
pony
with
founder
after
examining
its
hooves
.
•
Prompt
treatment
can
prevent
founder
from
becoming
severe
.
Prompt
treatment
can
prevent
founder
from
becoming
severe
.
Probably
so
called
because
an
affected
horse
is
at
risk
of
‘
foundering
’,
i
.
e
.,
collapsing
.
found
verb
-
find
,
finding
,
finds
,
found
past
tense
and
past
participle
of
find
•
We
finally
found
our
lost
dog
hiding
under
the
porch
.
We
finally
found
our
lost
dog
hiding
under
the
porch
.
•
I
found
a
ten-dollar
bill
in
my
old
coat
pocket
.
I
found
a
ten-dollar
bill
in
my
old
coat
pocket
.
Irregular
past
forms
of
Old
English
findan
"
to
come
upon
,
discover
."
verb
to
start
or
establish
something
,
such
as
a
city
,
company
,
or
organization
,
so
that
it
can
continue
for
a
long
time
•
In
1976
,
two
friends
found
a
small
tech
company
in
their
parents'
garage
.
In
1976
,
two
friends
found
a
small
tech
company
in
their
parents'
garage
.
•
The
emperor
decided
to
found
a
grand
city
beside
the
wide
river
.
The
emperor
decided
to
found
a
grand
city
beside
the
wide
river
.
From
Middle
English
founden
,
borrowed
from
Old
French
fonder
,
from
Latin
fundāre
“
to
lay
the
bottom
,
establish
,”
related
to
fundus
“
bottom
,
foundation
.”
boundary
noun
-
boundary
,
boundaries
a
line
or
edge
that
marks
where
one
area
ends
and
another
begins
•
A
white
picket
fence
marks
the
boundary
between
their
yard
and
their
neighbor's
garden
.
A
white
picket
fence
marks
the
boundary
between
their
yard
and
their
neighbor's
garden
.
•
The
hikers
stopped
at
the
river
because
it
was
the
national
park's
northern
boundary
.
The
hikers
stopped
at
the
river
because
it
was
the
national
park's
northern
boundary
.
noun
-
boundary
,
boundaries
a
limit
of
what
is
acceptable
or
of
what
someone
is
willing
or
allowed
to
do
•
It's
important
to
set
a
clear
boundary
between
work
and
family
time
.
It's
important
to
set
a
clear
boundary
between
work
and
family
time
.
•
The
comedian
pushed
the
boundary
of
good
taste
with
his
jokes
.
The
comedian
pushed
the
boundary
of
good
taste
with
his
jokes
.
noun
-
boundary
,
boundaries
in
cricket
,
the
edge
of
the
playing
field
,
or
a
shot
that
sends
the
ball
to
or
over
that
edge
and
scores
four
or
six
runs
•
The
crowd
cheered
when
the
ball
raced
to
the
boundary
for
four
runs
.
The
crowd
cheered
when
the
ball
raced
to
the
boundary
for
four
runs
.
•
She
flicked
the
delivery
over
mid-wicket
and
it
crossed
the
boundary
rope
.
She
flicked
the
delivery
over
mid-wicket
and
it
crossed
the
boundary
rope
.
noun
-
boundary
,
boundaries
in
mathematics
,
the
set
of
points
that
separates
the
inside
of
a
shape
or
region
from
the
space
outside
it
•
In
calculus
we
prove
that
the
circle
is
the
boundary
of
a
disk
.
In
calculus
we
prove
that
the
circle
is
the
boundary
of
a
disk
.
•
The
professor
drew
the
region
and
shaded
its
boundary
in
bold
.
The
professor
drew
the
region
and
shaded
its
boundary
in
bold
.
wound
noun
a
cut
,
hole
,
or
other
damage
to
the
skin
or
flesh
caused
by
an
injury
•
The
nurse
cleaned
the
soldier's
wound
and
covered
it
with
a
bandage
.
The
nurse
cleaned
the
soldier's
wound
and
covered
it
with
a
bandage
.
•
After
falling
off
his
bike
,
Tim
had
a
small
wound
on
his
knee
.
After
falling
off
his
bike
,
Tim
had
a
small
wound
on
his
knee
.
Old
English
wund
,
of
Germanic
origin
,
related
to
German
Wunde
.
verb
to
cause
a
break
in
someone
’
s
skin
or
flesh
•
Broken
glass
can
easily
wound
your
feet
if
you
walk
barefoot
.
Broken
glass
can
easily
wound
your
feet
if
you
walk
barefoot
.
•
The
hunter
did
not
intend
to
kill
the
deer
,
only
to
wound
it
.
The
hunter
did
not
intend
to
kill
the
deer
,
only
to
wound
it
.
Old
English
wundian
,
from
wund
‘
wound
’.
noun
deep
emotional
pain
caused
by
someone
’
s
words
or
actions
•
His
betrayal
left
a
lasting
wound
that
took
years
to
heal
.
His
betrayal
left
a
lasting
wound
that
took
years
to
heal
.
•
Apologizing
helped
close
the
emotional
wound
between
them
.
Apologizing
helped
close
the
emotional
wound
between
them
.
Figurative
use
recorded
since
Middle
English
,
extending
the
idea
of
physical
injury
to
emotional
hurt
.
verb
-
wind
,
winding
,
winds
,
wound
past
tense
and
past
participle
of
wind
:
to
turn
or
coil
something
around
or
to
twist
it
•
She
wound
the
scarf
around
her
neck
before
stepping
into
the
snow
.
She
wound
the
scarf
around
her
neck
before
stepping
into
the
snow
.
•
He
wound
the
rope
tightly
around
the
post
to
secure
the
boat
.
He
wound
the
rope
tightly
around
the
post
to
secure
the
boat
.
From
Old
English
windan
‘
to
twist
,
coil
’.