noun
costume
KOS-tyoom
noun
1
An outfit worn to represent a particular character, period, or culture.
"She wore a witch costume for Halloween."
"The actors' costumes were designed to look authentic to the 1920s."
verb
1
To dress someone in a costume.
"The wardrobe department costumed the entire cast for opening night."
How to Use Costume
Learner’s notesIn plain EnglishA special outfit worn for a role, performance, or disguise.
Common pairings
fancy dress costume
Halloween costume
stage costume
Word Forms
costumed past tense, costumes plural, costumes singular
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She wore a witch _____ for Halloween.
Etymology
From French costume, from Italian costume, ultimately from Latin consuetudo, "custom" or "habit." It is a doublet of the words "custom" and "consuetude."