double

The definition of double is twice as much or made of two parts.

(adjective)

An example of something double is four cookies as opposed to two.

Double means something multiplied by two or something that looks or acts much like another.

(noun)

An example of a double is a person who performs stunts for someone else in a movie.

Double is defined as to make twice as much or to fold in half.

(verb)

An example of to double is to cut one piece of pizza into two.

See double in Webster's New World College Dictionary

adjective

Origin: ME < OFr < L duplus, lit., twofold (akin to Gr diploos) < duo, two + -plus < IE *plo-, -fold < base *pel-, to fold

adverb

noun

transitive verb doubled, doubling

to make double; make twice as much or as many; multiply by two
to fold; add another ply to: double the bandage
to repeat or duplicate
to be the double of
☆ Baseball
1. to put out (the second runner) in executing a double play
2. to advance (a runner) by hitting a double
Bridge to increase the point value or penalty of (an opponent's bid) by saying “double” when it is one's turn to bid
Music to supply the upper or lower octave to (another part or voice): double the tenor in brass
Naut. to sail around: they doubled Cape Horn

intransitive verb

to become double; increase twofold
to bend or turn sharply backward: the animal doubled on its tracks
to serve as a double
to serve an additional purpose
☆ Informal to double-date
☆ Baseball to hit a double
Music to play one or more instruments in addition to one's principal instrument: often with on

See double in American Heritage Dictionary 4

adjective

Twice as much in size, strength, number, or amount: a double dose.
Composed of two like parts: double doors.
Composed of two unlike parts; dual: a double meaning; a double role for an actor.
Accommodating or designed for two: a double bed; a double room.
Characterized by duplicity; deceitful: speak with a double tongue.
Botany Having many more than the usual number of petals, usually in a crowded or an overlapping arrangement: a double chrysanthemum.

noun

Something increased twofold.
One that closely resembles another; a duplicate.
a. An actor's understudy.
b. An actor who takes the place of another actor in scenes requiring special skills or preparations: a stunt double; a body double.
An apparition; a wraith.
a. A sharp turn in a direction of movement; a reversal.
b. A sharp, often devious change in position or argument; a shift.
doubles Sports A form of a game, such as tennis or handball, having two players on each side.
Baseball See two-base hit.
Games
a. A bid in bridge indicating strength to one's partner; a request for a bid.
b. A bid doubling one's opponent's bid in bridge, thus increasing the penalty for failure to fulfill the contract.
c. A hand justifying such a bid.

verb dou·bled, dou·bling, dou·bles

verb, transitive

To make twice as great.
To be twice as much as: doubled the score of his opponent.
To fold in two.
To clench (one's fist).
To duplicate; repeat.
To turn (an enemy spy) into a double agent.
Baseball
a. To cause the scoring of (a run) by hitting a two-base hit.
b. To advance or score (a runner) by hitting a two-base hit.
Baseball To put out (a runner) as the second part of a double play.
Games To challenge (an opponent's bid) with a double in bridge.
Music To duplicate (another part or voice) an octave higher or lower or in unison.
Nautical To sail around: double a cape.

verb, intransitive

To be increased twofold: The debt soon doubled.
To turn sharply or all the way around; reverse one's course: had to double back to touch the missed base.
To serve in an additional capacity: a frying pan that doubles as a pie tin; a conductor who doubles as a pianist.
To replace an actor in the actor's absence or in a certain scene.
Baseball To hit a two-base hit.
Games To announce a double in bridge.

adverb