double

nouns

a base hit on which the batter stops safely at second base
"he hit a double to deep centerfield"
double, two-bagger, two-base hit, two-baser
a stand-in for movie stars to perform dangerous stunts
"his first job in Hollywood was as a double for Clark Gable"
double, stunt man, stunt woman
someone who closely resembles a famous person (especially an actor)
"he could be Gingrich's double"; "she's the very image of her mother"
double, image, look-alike
a quantity that is twice as great as another
"36 is the double of 18"
double
is a type of (narrower)
the product of a quantity by an integer
"36 is a multiple of 9"
multiple
raising the stakes in a card game by a factor of 2
"I decided his double was a bluff"
double, doubling

verbs

increase twofold
"The population doubled within 50 years"
double, duplicate
is derived from
doubling
is derived from
doubling
see also
double up
hit a two-base hit
double
domain category
a ball game played with a bat and ball between two teams of nine players; teams take turns at bat trying to score runs
"he played baseball in high school"; "there was a baseball game on every empty lot"; "there was a desire for National League ball in the area"; "play ball!"
baseball, baseball game
is a type of (narrower)
cause to move by striking
"hit a ball"
hit
bend over or curl up, usually with laughter or pain
"He doubled and vomited violently"
double, double over, double up
do double duty; serve two purposes or have two functions
"She doubles as his wife and secretary"
double
is a type of (narrower)
perform as expected when applied
"The washing machine won't go unless it's plugged in"; "Does this old car still run well?"; "This old radio doesn't work anymore"
function, go, operate, run, work
bridge: make a demand for (a card or suit)
double
is a type of (narrower)
make a demand, as for a card or a suit or a show of hands
"He called his trump"
bid, call
make or do or perform again
"He could never replicate his brilliant performance of the magic trick"
double, duplicate, reduplicate, repeat, replicate

adjectives

having more than one decidedly dissimilar aspects or qualities
"a double (or dual) role for an actor"; "the office of a clergyman is twofold; public preaching and private influence"- R.W.Emerson; "every episode has its double and treble meaning"-Frederick Harrison
double, dual, three-fold, threefold, treble, two-fold, twofold
consisting of or involving two parts or components usually in pairs
"an egg with a double yolk"; "a double (binary) star"; "double doors"; "dual controls for pilot and copilot"; "duple (or double) time consists of two (or a multiple of two) beats to a measure"
double, dual, duple
twice as great or many
"ate a double portion"; "the dose is doubled"; "a twofold increase"
double, doubled, two-fold, twofold
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"
double
antonym
single
domain category
the branch of biology that studies plants
botany, phytology
used of homologous chromosomes associated in pairs in synapsis
bivalent, double
large enough for two
"a double bed"; "a double room"
double
is similar to
above average in size or number or quantity or magnitude or extent
"a large city"; "set out for the big city"; "a large sum"; "a big (or large) barn"; "a large family"; "big businesses"; "a big expenditure"; "a large number of newspapers"; "a big group of scientists"; "large areas of the world"
big, large
having two meanings with intent to deceive
"a sly double meaning"; "spoke with forked tongue"
double, forked

adverbs

downward and forward
"he was bent double with pain"
double
two together
"some people sleep better double"
double
to double the degree
"she was doubly rewarded"; "his eyes were double bright"
double, doubly, twice