(ふん)する

ふんする
verb (suru)
to disguise oneself as, to play the role of
1. to disguise oneself as, to dress up as
To change one's appearance to look like someone or something else, typically by wearing a costume or makeup.
サンタクロースに(ふん)した。
He dressed up as Santa Claus.
警察官(けいさつかん)(ふん)した(おとこ)逮捕(たいほ)された。
A man disguised as a police officer was arrested.
ハロウィンで魔女(まじょ)(ふん)した子供(こども)たちが(まち)(ある)いていた。
Children dressed up as witches were walking through the town on Halloween.
2. to play the role of, to act as
To portray a character in a performance, film, or play. Used in theatrical and cinematic contexts.
主人公(しゅじんこう)(ふん)する俳優(はいゆう)()まった。
The actor who will play the lead role has been decided.
彼女(かのじょ)歴史上(れきしじょう)人物(じんぶつ)(ふん)して舞台(ぶたい)()った。
She took the stage playing a historical figure.
有名(ゆうめい)俳優(はいゆう)悪役(あくやく)(ふん)するということで話題(わだい)になった。
It became a topic of discussion that a famous actor would play the villain.

(ふん)する is used for both costume disguises and theatrical roles. The particle に marks the character or figure being portrayed.

PATTERN:

  • 〜に(ふん)する: to dress up as ~, to play the role of ~

COMMON COLLOCATIONS:

  • 女装(じょそう)(ふん)する: to disguise oneself as a woman
  • 主人公(しゅじんこう)(ふん)する: to play the lead
  • 悪役(あくやく)(ふん)する: to play the villain
  • 〜に(ふん)した姿(すがた): the appearance of someone disguised as ~

SIMILAR WORDS:

  • 変装(へんそう)する: to disguise oneself (emphasizes concealing identity)
  • (えん)じる: to act, to perform (broader term for performing a role)