*cos·tume/`kɑstum; ˈkɒstjʊm/ n [C,U] 1 a set of clothes worn by actors when they are performing in a play or film 〔在演戏或拍电影时穿的〕戏服: He designed the costumes for 'Swan Lake'. 他为《天鹅湖》设计了戏服。 2 clothes that are typical of a particular country or period of history 〔某国家或某时期的〕衣服; 服饰: the Maltese national costume 马尔他的民族服饰