American English

Definition of extra noun from the Oxford Advanced American Dictionary

     

    extra

     noun
    noun
    NAmE//ˈɛkstrə//
     
     
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  1. 1 a thing that is added to something that is not usual, standard, or necessary and that costs more The monthly fee is fixed and there are no hidden extras (= unexpected costs). While I was saving I had no money for little extras or luxuries.
  2. 2 a person who is employed to play a very small part in a movie, usually as a member of a crowd We need hundreds of extras for the battle scenes.
See the Oxford Advanced Learner's Dictionary entry: extra