Dictionary definition · double
noun
- a base hit on which the batter stops safely at second base"he hit a double to deep centerfield"
- a stand-in for movie stars to perform dangerous stunts"his first job in Hollywood was as a double for Clark Gable"
- someone who closely resembles a famous person (especially an actor)"he could be Gingrich's double"
verb
- increase twofold"The population doubled within 50 years"
- hit a two-base hit
- bend over or curl up, usually with laughter or pain"He doubled and vomited violently"
adjective
- having more than one decidedly dissimilar aspects or qualities"a double (or dual) role for an actor"
- consisting of or involving two parts or components usually in pairs"an egg with a double yolk"
- twice as great or many"ate a double portion"
adverb
- downward and forward"he was bent double with pain"
- two together"some people sleep better double"
- to double the degree"she was doubly rewarded"
Source: Open English WordNet (CC BY 4.0).