1. (

• costume

) the attire worn in a play or at a fancy dress ball; "he won the prize for best costume" ;

2. (

• costume ,

) unusual or period attire not characteristic of or appropriate to the time and place; "in spite of the heat he insisted on his woolen costume" ;

3. (

• costume ,

) the prevalent fashion of dress (including accessories and hair style as well as garments) ;

4. (

• costume ,

) the attire characteristic of a country or a time or a social class; "he wore his national costume" ;

1. (

• costume ,
• dress_up ,

) dress in a costume; "We dressed up for Halloween as pumpkins" ;

2. (

• costume

) furnish with costumes; as for a film or play ;