Costume

Pronunciation: k?s"t?m` or k?s-t?m"
n.
  1. Dress in general; esp., the distinctive style of dress of a people, class, or period.
  2. Such an arrangement of accessories, as in a picture, statue, poem, or play, as is appropriate to the time, place, or other circumstances represented or described.
  3. A character dress, used at fancy balls or for dramatic purposes.