Illustration: In a Japanese apartment dining room, a sliding door has just opened to reveal friends carrying a birthday cake and throwing confetti. The person at the table jerks upright from a slumped posture, eyes wide and face breaking into delighted laughter.

JLPT N1suru verbLevel estimated by Bebop

一いっ変ぺん

ippen

to change completely

Example sentences

  1. 夫妻ふさいは化学かがくを近代科学きんだいかがくへと一変いっぺんさせた。

    The couple transformed chemistry into a modern science.

    Tatoeba · CC BY 2.0 FR · Source

  2. その直後ちょくごの8月がつ18日にち、政局せいきょくは一変いっぺんする。

    Soon after that, on August 18, the political situation changed completely.

    KFTT corpus (NICT), Wikipedia · CC BY-SA 3.0 · Source

  3. 鉄砲てっぽうが戦闘形式せんとうけいしきを一変いっぺんさせ、天下統一てんかとういつへの道みちを開ひらいた。

    Firearms drastically changed the form of battle, and opened the road to the unification of the whole country.

    KFTT corpus (NICT), Wikipedia · CC BY-SA 3.0 · Source

Kanji in 一変

  • 一oneOnイチ・イツKunひと-・ひとつ
  • 変unusual; changeOnヘンKunかわる・かわり・かえる

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