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costume

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noun American English pronunciation: costume /ˈkɑsˌtum/ 
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singularcostume
pluralcostumes
  1. 1
    [countable/uncountable] clothes that performers wear in a play, movie, etc.

    The costumes, sets, and acting are all superb.

    a costume designer

  2. 3
    [countable/uncountable] clothes that are typical of a particular place or of a period in history

    dancers in traditional costumes

    They were all dressed in 18th-century costume.

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