ケーオー

noun, noun or participle which takes 'suru'

KO; knock-out

Borrowed from English 'KO', used in boxing and combat sports for a knock-out. Also used as a suru-verb (ケーオーする) meaning 'to knock out'.

• 彼かれはパンチ一いっ発ぱつでケーオー勝がちした。

  He won by a KO with a single punch.

• チャンピオンは挑ちょう戦せん者しゃを3ラウンドでケーオーした。

  The champion KO'd the challenger in the third round.