1. • noun - a base hit on which the batter stops safely at second base
   • noun - a stand-in for movie stars to perform dangerous stunts
   • noun - someone who closely resembles a famous person (especially an actor)
   • noun - a quantity that is twice as great as another
   • noun - raising the stakes in a card game by a factor of 2
   • verb - increase twofold
   • verb - hit a two-base hit
   • verb - bend over or curl up, usually with laughter or pain
   • verb - do double duty
   • verb - bridge: make a demand for (a card or suit)
   • verb - make or do or perform again
   • adj - having more than one decidedly dissimilar aspects or qualities
   • adj - consisting of or involving two parts or components usually in pairs
   • adj - twice as great or many
   • adj - used of flowers having more than the usual number of petals in crowded or overlapping arrangements
   • adj - used of homologous chromosomes associated in pairs in synapsis
   • adj - large enough for two
   • adj - having two meanings with intent to deceive
   • adv - downward and forward
   • adv - two together
   • adv - to double the degree
2. • 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.
   • Something increased twofold.
   • One that closely resembles another; a duplicate.
   • An actor’s understudy.
   • 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 sharp turn in a direction of movement; a reversal.
   • A form of a game, such as tennis or handball, having two players on each side.
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   • Games.
   • A bid in bridge indicating strength to one’s partner; a request for a bid.
   • A bid doubling one’s opponent’s bid in bridge, thus increasing the penalty for failure to fulfill the contract.
   • A hand justifying such a bid.
   • 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.
   • To cause the scoring of (a run) by hitting a two-base hit.
   • To advance or score (a runner) by hitting a two-base hit.
   • To put out (a runner) as the second part of a double play.
   • To challenge (an opponent’s bid) with a double in bridge.
   • To duplicate (another part or voice) an octave higher or lower or in unison.
   • To sail around: double a cape.
   • 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.
   • To hit a two-base hit.
   • To announce a double in bridge.
   • To twice the amount or extent; doubly: paid double for the customized car.
   • Two together; in pairs: sleeping double.
   • In two: bent double.
   • To bend suddenly, as in pain or laughter.
   • To share accommodations meant for one person.
   • Immediately.
   • In double time.
3. • v - to make twice as great

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