1. The attire worn in a play or at a fancy dress ball
   "he won the prize for best costume"
    
2. The attire characteristic of a country or a time or a social class
   "he wore his national costume"
    
3. The prevalent fashion of dress (including accessories and hair style as well as garments)
   "The museum exhibit showcased the evolving costume of the 1920s"
    
4. Unusual or period attire not characteristic of or appropriate to the time and place
   "in spite of the heat he insisted on his woollen costume"

1. (performing arts) furnish with costumes; as for a film or play
   "The designer costumed the actors in elaborate 18th-century attire"
    
2. Dress in a costume
   "The children costumed as superheroes for Halloween";
   - dress up

Derived forms: costumes, costuming, costumed

Type of: apparel [archaic], attire, clothe, dress, enclothe [rare], fit out, furnish, garb, garment, habilitate [archaic], offer, provide, raiment [archaic], render, supply, tog [informal]

Encyclopedia: Costume