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iron
noun
a
small
electrical
device
with
a
flat
heated
base
that
you
press
over
clothes
to
remove
wrinkles
•
She
ran
the
hot
iron
over
her
shirt
to
remove
the
wrinkles
.
She
ran
the
hot
iron
over
her
shirt
to
remove
the
wrinkles
.
•
The
hotel
room
didn't
have
an
iron
,
so
he
borrowed
one
from
reception
.
The
hotel
room
didn't
have
an
iron
,
so
he
borrowed
one
from
reception
.
verb
-
iron
,
ironing
,
irons
,
ironed
to
make
clothes
smooth
by
pressing
them
with
a
hot
iron
•
I
still
need
to
iron
my
trousers
before
the
meeting
.
I
still
need
to
iron
my
trousers
before
the
meeting
.
•
He
carefully
ironed
the
collar
until
it
was
crisp
.
He
carefully
ironed
the
collar
until
it
was
crisp
.
noun
a
strong
,
hard
,
heavy
,
silver-grey
metal
(
chemical
symbol
Fe
)
that
is
used
to
make
steel
and
many
everyday
objects
•
The
bridge
is
made
of
reinforced
iron
beams
.
The
bridge
is
made
of
reinforced
iron
beams
.
•
Meteorites
often
contain
a
high
amount
of
iron
.
Meteorites
often
contain
a
high
amount
of
iron
.
Old
English
īren
,
īsern
,
from
Proto-Germanic
*īsarną
,
originally
meaning
‘
holy
metal
’;
related
to
Latin
‘
ferrum
’ (
iron
).
noun
a
golf
club
with
a
flat
angled
metal
head
used
for
medium-distance
shots
•
He
chose
a
seven-iron
for
the
150-yard
shot
.
He
chose
a
seven-iron
for
the
150-yard
shot
.
•
Her
new
set
of
irons
improved
her
game
.
Her
new
set
of
irons
improved
her
game
.
adjective
very
strong
,
firm
,
or
strict
and
difficult
to
change
or
break
•
The
coach
demanded
iron
discipline
from
the
team
.
The
coach
demanded
iron
discipline
from
the
team
.
•
Despite
the
setback
,
she
kept
an
iron
determination
to
succeed
.
Despite
the
setback
,
she
kept
an
iron
determination
to
succeed
.
irony
noun
-
irony
,
ironies
the
use
of
words
to
express
the
opposite
of
their
usual
meaning
so
people
understand
the
hidden
,
often
humorous
,
real
meaning
•
With
gentle
irony
,
she
praised
the
burnt
toast
as
“
chef-level
cuisine
.”
With
gentle
irony
,
she
praised
the
burnt
toast
as
“
chef-level
cuisine
.”
•
His
voice
dripped
with
irony
when
he
thanked
the
traffic
jam
for
its
“
perfect
timing
.”
His
voice
dripped
with
irony
when
he
thanked
the
traffic
jam
for
its
“
perfect
timing
.”
Early
16th
c
.:
from
French
ironie
,
from
Latin
ironia
,
from
Greek
eirōneía
‘
simulated
ignorance
’,
from
eirōn
‘
dissembler
’.
noun
-
irony
,
ironies
a
situation
in
which
the
opposite
of
what
you
expect
or
intend
happens
,
often
in
a
way
that
seems
amusing
or
strange
•
The
irony
is
that
the
fire
station
burned
down
.
The
irony
is
that
the
fire
station
burned
down
.
•
It
was
a
cruel
irony
that
the
marathon
winner
twisted
her
ankle
after
crossing
the
finish
line
.
It
was
a
cruel
irony
that
the
marathon
winner
twisted
her
ankle
after
crossing
the
finish
line
.
Extended
from
the
idea
of
verbal
contradiction
to
events
in
the
early
19th
c
.
noun
-
irony
,
ironies
in
literature
or
drama
,
the
effect
created
when
the
audience
knows
something
important
that
the
characters
do
not
,
making
the
characters
’
actions
or
words
take
on
a
different
meaning
•
In
the
play
,
dramatic
irony
arises
because
the
audience
already
knows
the
prince
is
alive
.
In
the
play
,
dramatic
irony
arises
because
the
audience
already
knows
the
prince
is
alive
.
•
Shakespeare
often
used
irony
so
viewers
understood
secrets
the
characters
missed
.
Shakespeare
often
used
irony
so
viewers
understood
secrets
the
characters
missed
.
The
theatrical
sense
developed
in
classical
Greek
drama
and
was
later
formalized
in
Renaissance
literary
criticism
.
environment
noun
the
natural
world
,
especially
the
air
,
water
,
land
,
and
living
things
,
considered
as
a
whole
and
affected
by
human
activity
•
Scientists
warn
that
plastic
pollution
is
harming
the
environment
.
Scientists
warn
that
plastic
pollution
is
harming
the
environment
.
•
The
government
introduced
new
laws
to
protect
the
environment
from
industrial
waste
.
The
government
introduced
new
laws
to
protect
the
environment
from
industrial
waste
.
From
French
environnement
,
from
environner
“
to
surround
,”
from
environ
“
round
about
.”
noun
the
conditions
,
influences
,
and
surroundings
that
affect
how
a
person
,
animal
,
or
thing
lives
or
operates
•
A
calm
classroom
creates
a
positive
learning
environment
.
A
calm
classroom
creates
a
positive
learning
environment
.
•
He
grew
up
in
an
artistic
environment
filled
with
music
and
paintings
.
He
grew
up
in
an
artistic
environment
filled
with
music
and
paintings
.
noun
in
computing
,
the
combination
of
hardware
,
software
,
and
settings
in
which
a
program
or
system
runs
•
The
app
crashed
because
it
was
launched
in
the
wrong
environment
.
The
app
crashed
because
it
was
launched
in
the
wrong
environment
.
•
Developers
test
new
features
in
a
staging
environment
before
going
live
.
Developers
test
new
features
in
a
staging
environment
before
going
live
.
environmental
adjective
connected
with
the
natural
world
and
how
human
activities
affect
it
•
The
city
launched
an
environmental
campaign
to
reduce
plastic
waste
.
The
city
launched
an
environmental
campaign
to
reduce
plastic
waste
.
•
Many
students
joined
the
school
’
s
environmental
club
to
plant
trees
around
campus
.
Many
students
joined
the
school
’
s
environmental
club
to
plant
trees
around
campus
.
Formed
from
environment
+
-al
in
the
late
19th
century
to
describe
matters
concerning
the
natural
surroundings
.
adjective
relating
to
the
physical
or
social
surroundings
that
influence
how
someone
or
something
behaves
or
develops
•
Good
lighting
is
an
environmental
factor
that
affects
productivity
.
Good
lighting
is
an
environmental
factor
that
affects
productivity
.
•
The
study
looked
at
the
environmental
risks
in
the
workplace
.
The
study
looked
at
the
environmental
risks
in
the
workplace
.
Extension
of
sense
from
the
natural
world
to
any
set
of
surrounding
conditions
in
early
20th
century
academic
writing
.