How to say "costume" in Japanese

Choosing the right word
  • 衣装いしょうJLPT N1approx.Common
    nounCovers a costume in the sense of a set of clothes worn for a role or occasion, such as stage dress or an outfit for a party; also used for outfits more generally.
    ぬれた衣装いしょうが彼女かのじょの体からだにくっついていた。↗
    Wet clothes clung to her body.
  • nounThe loanword for a dress-up costume, the kind worn at Halloween or masquerade events, typically representing a character or figure rather than everyday clothing.
  • 仮装かそうCommon
    noun, suru verb, intransitive verbRefers to fancy dress or disguise — the act of dressing up as something else — rather than to the garment itself, so it is not the word for a costume as clothing.
    皆みな仮装かそうしていたのでだれがだれだかわからなかった。↗
    Everybody was disguised, so I couldn't tell who was who.
  • 装束しょうぞくCommon
    nounAttire in a formal, traditional or ceremonial style, such as historical or period costume; it suggests elaborate, old-fashioned dress rather than everyday costume.
  • 服ふくJLPT N5approx.Common
    noun, noun (suffix)The everyday word for clothes; it appears under 'costume' only in the loose sense of what someone is wearing, and is not how you say a fancy-dress or stage costume.
    彼かれは濡ぬれた服ふくを火ひにあぶってかわかした。↗
    He dried his wet clothes by the fire.

Use 衣装 for a costume worn for a role or occasion, 「コスチューム」 for dress-up costumes such as Halloween, 仮装 for the disguise or act of dressing up, 装束 for formal or traditional attire, and 服 only for ordinary clothes.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents
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JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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