wardrobe vs costume

wardrobe and costume both are nouns.

Word	Noun	Adjective	Verb	Adverb
wardrobe	Yes	No	No	No
costume	Yes	No	Yes	No

wardrobe (noun)	costume (noun)
a tall piece of furniture that provides storage space for clothes; has a door and rails or hooks for hanging clothes	the attire worn in a play or at a fancy dress ball
collection of clothing belonging to one person	the attire characteristic of a country or a time or a social class
collection of costumes belonging to a theatrical company	unusual or period attire not characteristic of or appropriate to the time and place
	the prevalent fashion of dress (including accessories and hair style as well as garments)

wardrobe (verb)	costume (verb)
	dress in a costume
	furnish with costumes; as for a film or play