1.Definition: a base hit on which the batter stops safely at second base

"He hit a double to deep centerfield"

Category: General

2.Definition: a quantity that is twice as great as another

"36 is the double of 18"

Category: General

3.Definition: a stand-in for movie stars to perform dangerous stunts

"His first job in Hollywood was as a double for Clark Gable"

Related Noun(s):stunt man

Category: People

4.Definition: raising the stakes in a card game by a factor of 2

"I decided his double was a bluff"

Category: General

5.Definition: someone who closely resembles a famous person (especially an actor)

"He could be Gingrich's double", "She's the very image of her mother"

Related Noun(s):image

Category: People