Costume | Mean of costume in English Dictionary

/ˈkɑːˌstuːm/

• Noun
• the clothes that are worn by someone (such as an actor) who is trying to look like a different person or thing
1. children in their Halloween costumes
2. a colorful clown costume
• the clothes worn by a group of people especially during a particular time in the past
1. a formal 18th-century Japanese costume
2. The dancers were dressed in their national costumes. [=the clothing that is traditional in their countries]
• wearing a costume
1. If all the actors are in costume, we're ready to begin.
2. The waiters were all in ancient Roman costume.

• involving people wearing costumes
1. You're invited to a costume party!
2. a costume ball
3. costume dramas [=movies that are set in the past in which the actors are dressed like people from the past]