Children's Illustrated Dictionary.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

underwear

noun

the clothes that you wear

next to your skin and under

your other clothes.

undo

undoes undoing undid undone

verb

to unfasten

or untie.

Undoing a

knot in a rope.

N say un-doo

undress

undresses undressing

undressed verb

to take

clothes off.

N opposite dress

uneasy

adjective

not feeling comfortable

or happy.

She felt uneasy about leaving

the door unlocked.

uneasily adverb

unemployed

adjective

without a job.

He’s been unemployed for

almost a year.

N opposite employed

unemployment noun

uneven

adjective

not smooth or level.

The road had a very

uneven surface.

N opposite even

unevenly adverb

unexpected

adjective

surprising, or happening

when you do not think it will.

The unexpected rain made

everyone leave the beach.

N opposite expected

unexpectedly adverb

unfair

adjective

not right or honest.

That’s unfair! You have more

than me!

N opposite fair

unfortunate

adjective

having or

bringing

bad luck.

It was unfortunate that he’d

left a roller skate on the floor.

N opposite fortunate

unfortunately adverb

unhappy

adjective

sad or miserable.

She felt unhappy when she

failed the exam.

N opposite happy

unhealthy

adjective

1 not well or not fit.

You look unhealthy.

2 bad for your health.

It’s unhealthy to eat snacks

all the time.

N say un-hel-thee

N opposite healthy

unicorn

unicorns noun

an imaginary animal in

myths and fairy tales.

A unicorn is like a horse,

but has a long, spiraled

horn on its forehead.

N say yoo-ni-korn

unicycle

unicycles noun

a machine for riding on, with

pedals, a saddle,

and one wheel.

Unicycles are

sometimes used

for performing

acrobatic tricks.

N say yoo-ni-sy-kul

uniform

uniforms noun

special clothes worn by

members of a group

to show that they

belong to that

group. People in

the armed forces,

the police force,

and some

students wear

uniforms.

N say yoo-ni-form

union

unions noun

1 two or more people, places,

or things that are joined

together to become one.

Russia was once a part of

the Union of Soviet

Socialist Republics.

2 a group of workers that join

together to take care of the

concerns of employees.

N say yoon-yun

unique

adjective

being the only

one of its kind.

Every snowflake

is unique.

N say yoo-neek

unit

units noun

1 a single part of something.

A kitchen unit.

2 a fixed amount used as

a standard by which other

things are measured.

A foot is a unit of length.

unite

unites uniting united verb

to join together or to do

something together.

The towns united in their fight

against the factory’s pollution.

N say yoo-nite

underwear

19th-century army

general’s uniform

undershirt

underpants