costume
dress up
dress in a costume
We dressed up for Halloween as pumpkins
furnish with costumes; as for a film or play
the attire worn in a play or at a fancy dress ball
he won the prize for best costume
the attire characteristic of a country or a time or a social class
he wore his national 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
the prevalent fashion of dress (including accessories and hair style as well as garments)