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product
noun
something
that
is
made
or
grown
,
usually
in
large
numbers
,
so
that
it
can
be
sold
or
used
•
The
new
smartphone
product
sold
out
within
hours
.
The
new
smartphone
product
sold
out
within
hours
.
•
She
tested
the
skin-care
product
on
her
hand
before
buying
it
.
She
tested
the
skin-care
product
on
her
hand
before
buying
it
.
From
Latin
productum
,
meaning
‘
something
brought
forth
’.
noun
a
result
or
outcome
that
comes
from
a
particular
action
,
process
,
or
situation
•
The
novel
is
a
product
of
years
of
research
and
imagination
.
The
novel
is
a
product
of
years
of
research
and
imagination
.
•
Her
confidence
is
the
product
of
constant
practice
.
Her
confidence
is
the
product
of
constant
practice
.
noun
in
mathematics
,
the
number
you
get
when
you
multiply
two
or
more
numbers
together
•
The
product
of
7
and
8
is
56
.
The
product
of
7
and
8
is
56
.
•
To
find
the
area
,
multiply
the
two
sides
and
write
down
the
product
.
To
find
the
area
,
multiply
the
two
sides
and
write
down
the
product
.
noun
in
chemistry
,
a
substance
that
is
formed
during
or
after
a
chemical
reaction
•
Water
is
a
product
of
hydrogen
and
oxygen
reacting
together
.
Water
is
a
product
of
hydrogen
and
oxygen
reacting
together
.
•
The
reaction
produced
two
gaseous
products
.
The
reaction
produced
two
gaseous
products
.
production
noun
-
production
the
process
of
making
,
growing
,
or
creating
goods
,
energy
,
or
other
things
in
large
amounts
•
Modern
factories
use
robots
to
speed
up
production
.
Modern
factories
use
robots
to
speed
up
production
.
•
A
long
drought
caused
a
sharp
fall
in
wheat
production
this
year
.
A
long
drought
caused
a
sharp
fall
in
wheat
production
this
year
.
Late
Middle
English
,
from
medieval
Latin
productio
‘
bringing
forth
’,
from
Latin
producere
‘
bring
forward
’.
conduct
verb
to
plan
,
organize
,
and
carry
out
an
activity
such
as
a
study
,
investigation
,
or
meeting
•
The
professor
conducted
a
survey
to
learn
about
students'
study
habits
.
The
professor
conducted
a
survey
to
learn
about
students'
study
habits
.
•
Engineers
will
conduct
tests
on
the
bridge
before
it
opens
to
traffic
.
Engineers
will
conduct
tests
on
the
bridge
before
it
opens
to
traffic
.
From
Middle
English
‘
conducten
’,
from
Latin
‘
conducere
’
meaning
‘
to
lead
together
’.
Over
time
,
the
sense
of
leading
or
guiding
broadened
to
organizing
or
carrying
out
an
activity
.
verb
to
direct
a
group
of
musicians
or
singers
so
that
they
perform
together
•
The
maestro
raised
his
baton
and
conducted
the
orchestra
through
the
symphony
.
The
maestro
raised
his
baton
and
conducted
the
orchestra
through
the
symphony
.
•
She
dreams
of
conducting
a
world-famous
orchestra
someday
.
She
dreams
of
conducting
a
world-famous
orchestra
someday
.
This
sense
comes
from
the
idea
of
‘
leading
together
’
musicians
,
first
recorded
in
the
17th
century
.
verb
(
of
a
material
)
to
allow
electricity
,
heat
,
or
sound
to
pass
through
it
•
Copper
conducts
electricity
better
than
most
metals
.
Copper
conducts
electricity
better
than
most
metals
.
•
Because
rubber
does
not
conduct
heat
well
,
it
is
used
for
pot
handles
.
Because
rubber
does
not
conduct
heat
well
,
it
is
used
for
pot
handles
.
Adopted
into
scientific
language
in
the
18th
century
as
experiments
in
electricity
and
heat
required
a
term
for
‘
carrying
’
energy
through
a
substance
.
noun
-
conduct
a
person
’
s
behaviour
,
especially
the
way
they
act
in
public
or
in
a
particular
situation
•
The
students'
excellent
conduct
impressed
their
new
teacher
.
The
students'
excellent
conduct
impressed
their
new
teacher
.
•
His
rude
conduct
at
dinner
embarrassed
everyone
.
His
rude
conduct
at
dinner
embarrassed
everyone
.
Middle
English
,
from
Latin
‘
conductus
’
meaning
‘
led
together
’;
by
the
15th
century
it
referred
to
personal
behaviour
.
reduction
noun
the
act
or
process
of
making
something
smaller
or
less
in
size
,
amount
,
price
,
or
degree
•
The
store
announced
a
50%
reduction
in
winter
coat
prices
.
The
store
announced
a
50%
reduction
in
winter
coat
prices
.
•
Regular
exercise
can
lead
to
a
significant
reduction
in
stress
levels
.
Regular
exercise
can
lead
to
a
significant
reduction
in
stress
levels
.
Late
Middle
English
from
Latin
reductio
(
n-
),
from
reducere
‘
bring
back
,
lead
back
’.
noun
the
amount
by
which
something
is
made
smaller
or
less
•
Customers
received
a
$10
reduction
on
every
ticket
.
Customers
received
a
$10
reduction
on
every
ticket
.
•
Her
new
diet
led
to
a
three-kilogram
reduction
in
weight
.
Her
new
diet
led
to
a
three-kilogram
reduction
in
weight
.
noun
in
cooking
,
a
sauce
or
liquid
made
thicker
and
more
flavorful
by
boiling
it
until
it
becomes
less
•
The
chef
simmered
red
wine
until
it
became
a
glossy
reduction
.
The
chef
simmered
red
wine
until
it
became
a
glossy
reduction
.
•
A
drizzle
of
balsamic
reduction
added
sweetness
to
the
salad
.
A
drizzle
of
balsamic
reduction
added
sweetness
to
the
salad
.
noun
in
chemistry
,
a
reaction
in
which
a
substance
gains
electrons
or
its
oxidation
state
decreases
•
Copper
oxide
undergoes
reduction
to
form
pure
copper
in
the
furnace
.
Copper
oxide
undergoes
reduction
to
form
pure
copper
in
the
furnace
.
•
Electrolysis
involves
both
oxidation
and
reduction
at
different
electrodes
.
Electrolysis
involves
both
oxidation
and
reduction
at
different
electrodes
.
noun
in
mathematics
or
logic
,
the
act
of
changing
a
problem
,
fraction
,
or
expression
into
an
equivalent
but
simpler
form
•
Fraction
reduction
turned
8⁄12
into
2⁄3
.
Fraction
reduction
turned
8⁄12
into
2⁄3
.
•
Row
reduction
helps
solve
systems
of
equations
quickly
.
Row
reduction
helps
solve
systems
of
equations
quickly
.
noun
in
medicine
,
the
act
of
putting
a
broken
bone
or
dislocated
body
part
back
into
its
normal
position
•
The
surgeon
performed
a
closed
reduction
on
the
patient
’
s
dislocated
shoulder
.
The
surgeon
performed
a
closed
reduction
on
the
patient
’
s
dislocated
shoulder
.
•
After
the
reduction
,
her
ankle
was
wrapped
in
a
cast
.
After
the
reduction
,
her
ankle
was
wrapped
in
a
cast
.
introduction
noun
the
first
part
of
a
book
,
essay
,
speech
,
or
similar
work
that
explains
what
it
will
be
about
•
I
always
read
the
introduction
before
starting
the
first
chapter
.
I
always
read
the
introduction
before
starting
the
first
chapter
.
•
The
professor
’
s
lecture
began
with
a
clear
introduction
to
the
topic
.
The
professor
’
s
lecture
began
with
a
clear
introduction
to
the
topic
.
Sense
developed
in
16th-century
English
to
refer
to
the
opening
section
of
a
written
work
.
noun
the
formal
act
of
making
two
or
more
people
known
to
each
other
•
“
May
I
make
an
introduction
?
This
is
my
sister
,
Emily
,”
he
said
with
a
smile
.
“
May
I
make
an
introduction
?
This
is
my
sister
,
Emily
,”
he
said
with
a
smile
.
•
After
a
brief
introduction
,
the
guests
began
to
mingle
around
the
garden
.
After
a
brief
introduction
,
the
guests
began
to
mingle
around
the
garden
.
late
Middle
English
,
from
Latin
introductio
,
from
introducere
‘
lead
in
’.
noun
the
act
of
bringing
something
into
use
or
existence
for
the
first
time
•
The
introduction
of
electric
cars
has
changed
the
automobile
industry
.
The
introduction
of
electric
cars
has
changed
the
automobile
industry
.
•
Many
jobs
were
created
after
the
introduction
of
the
new
tax
policy
.
Many
jobs
were
created
after
the
introduction
of
the
new
tax
policy
.
Industrial-era
extension
of
the
base
sense
“
to
bring
in
”,
applied
to
new
products
and
policies
.
noun
a
beginner-level
course
,
book
,
or
talk
that
teaches
the
basic
facts
about
a
subject
•
I
’
m
taking
an
Introduction
to
Philosophy
this
semester
.
I
’
m
taking
an
Introduction
to
Philosophy
this
semester
.
•
The
book
“
An
Introduction
to
Robotics
”
explains
concepts
in
simple
language
.
The
book
“
An
Introduction
to
Robotics
”
explains
concepts
in
simple
language
.
Pedagogical
sense
arose
in
the
19th
century
as
universities
expanded
subject
surveys
.
noun
a
short
opening
passage
of
music
that
comes
before
the
main
part
of
a
piece
•
The
song
’
s
piano
introduction
is
calm
before
the
drums
kick
in
.
The
song
’
s
piano
introduction
is
calm
before
the
drums
kick
in
.
•
The
orchestra
rehearsed
the
slow
introduction
several
times
.
The
orchestra
rehearsed
the
slow
introduction
several
times
.
Borrowed
into
musical
terminology
in
the
18th
century
to
describe
an
opening
segment
.
productive
adjective
working
in
a
way
that
gets
a
lot
done
or
achieves
good
results
•
After
a
productive
morning
,
Mia
had
finished
all
her
homework
before
lunch
.
After
a
productive
morning
,
Mia
had
finished
all
her
homework
before
lunch
.
•
Turning
off
his
phone
helped
Luca
stay
productive
while
studying
for
the
exam
.
Turning
off
his
phone
helped
Luca
stay
productive
while
studying
for
the
exam
.
From
Latin
productivus
,
from
producere
“
to
bring
forth
,
produce
”.
adjective
able
to
produce
large
amounts
of
goods
,
crops
,
or
other
tangible
results
•
The
volcanic
soil
makes
the
island's
farms
highly
productive
.
The
volcanic
soil
makes
the
island's
farms
highly
productive
.
•
With
new
machines
,
the
factory
became
two
times
more
productive
.
With
new
machines
,
the
factory
became
two
times
more
productive
.
adjective
(
linguistics
)
actively
used
for
making
new
words
or
grammatical
forms
•
In
English
,
the
suffix
"
-ness
"
is
still
productive
because
we
can
make
new
words
like
"
kindness
".
In
English
,
the
suffix
"
-ness
"
is
still
productive
because
we
can
make
new
words
like
"
kindness
".
•
The
professor
explained
that
the
rule
for
adding
"
-ed
"
to
form
the
past
tense
is
productive
.
The
professor
explained
that
the
rule
for
adding
"
-ed
"
to
form
the
past
tense
is
productive
.
adjective
(
medical
)
producing
a
bodily
substance
such
as
mucus
•
He
went
to
the
clinic
with
a
productive
cough
full
of
mucus
.
He
went
to
the
clinic
with
a
productive
cough
full
of
mucus
.
•
Doctors
worry
when
a
productive
cough
lasts
more
than
three
weeks
.
Doctors
worry
when
a
productive
cough
lasts
more
than
three
weeks
.
productivity
noun
-
productivity
the
rate
at
which
goods
or
services
are
produced
compared
with
the
resources
,
time
,
or
workers
needed
to
produce
them
•
Automation
raised
the
factory's
productivity
by
twenty
percent
.
Automation
raised
the
factory's
productivity
by
twenty
percent
.
•
Economists
compare
productivity
between
countries
to
understand
growth
.
Economists
compare
productivity
between
countries
to
understand
growth
.
From
productive
+
-ity
,
first
recorded
in
the
early
19th
century
to
describe
economic
output
per
worker
.
noun
-
productivity
a
person
’
s
ability
to
work
efficiently
and
get
a
lot
done
in
a
given
time
•
Using
a
planner
helps
me
track
tasks
and
improve
my
productivity
.
Using
a
planner
helps
me
track
tasks
and
improve
my
productivity
.
•
He
listens
to
instrumental
music
to
maintain
high
productivity
while
coding
.
He
listens
to
instrumental
music
to
maintain
high
productivity
while
coding
.
Extended
from
its
economic
sense
to
personal
work
habits
in
the
mid-20th
century
,
paralleling
the
rise
of
office
culture
and
self-help
literature
.