double

Sense 1 noun

a base hit on which the batter stops safely at second base

he hit a double to deep centerfield

Sense 2 verb

increase twofold

The population doubled within 50 years

Sense 3 adjective

having more than one decidedly dissimilar aspects or qualities

a double (or dual) role for an actor

Sense 4 adverb

downward and forward

he was bent double with pain

Sense 5 noun

a stand-in for movie stars to perform dangerous stunts

his first job in Hollywood was as a double for Clark Gable

Sense 6 verb

hit a two-base hit

Sense 7 adjective

consisting of or involving two parts or components usually in pairs

an egg with a double yolk

Sense 8 adverb

two together

some people sleep better double

Sense 9 noun

someone who closely resembles a famous person (especially an actor)

he could be Gingrich's double

Sense 10 verb

bend over or curl up, usually with laughter or pain

He doubled and vomited violently

Sense 11 adjective

twice as great or many

ate a double portion

Sense 12 adverb

to double the degree

she was doubly rewarded

Sense 13 noun

a quantity that is twice as great as another

36 is the double of 18

Sense 14 verb

do double duty; serve two purposes or have two functions

She doubles as his wife and secretary

Sense 15 adjective

used of flowers having more than the usual number of petals in crowded or overlapping arrangements

double chrysanthemums have many rows of petals and are usually spherical or hemispherical

Sense 16 noun

raising the stakes in a card game by a factor of 2

I decided his double was a bluff

Sense 17 verb

bridge: make a demand for (a card or suit)

Sense 18 adjective

used of homologous chromosomes associated in pairs in synapsis

Sense 19 verb

make or do or perform again

He could never replicate his brilliant performance of the magic trick

Sense 20 adjective

large enough for two

a double bed

Sense 21 adjective

having two meanings with intent to deceive

a sly double meaning