The definition of costume means a style of dress characteristic of a certain period or country or profession, or clothes worn for an event or a play or for a party with a theme.(noun)
Costume is defined as to dress up or to provide with clothing.(verb)
An example of costume is to dress a child as Frankenstein for Halloween.
See costume in Webster's New World College Dictionary
Origin: 18th-c. art term < Fr < It < L consuetudo, custom
See costume in American Heritage Dictionary 4
Origin: , from Italian, style, dress
Origin: , from Latin cōnsuētūdō, custom; see custom.
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