costume - definition and synonyms

 
noun 

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/ˈkɒstjuːm/
singularcostume
pluralcostumes
  1. 1
    [countable/uncountable] clothes that performers wear in a play, film etc

    The costumes, sets, and acting are all superb.

    a costume designer

  2. 2
    [countable/uncountable] clothes that are typical of a particular place or of a period in history

    They were all dressed in 18th-century costume.

  3. 3
    [countable] clothes that you wear at a fancy dress party, pretending to be a famous person, an animal, a character from a story etc
  4. 4
    [countable] British a swimming costume