Last Updated：2025/11/20

(transitive, boxing) To knock someone out, to render someone unconscious. / (intransitive, sports) To start play.

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Source Word

KO

transitive intransitive

(transitive, boxing) To knock someone out, to render someone unconscious. / (intransitive, sports) To start play.

Japanese Meaning

（ボクシングなどで）相手をノックアウトし、意識を失わせること / （スポーツにおいて）試合やプレーを開始すること

The champion managed to KO his opponent in the third round.

チャンピオンは第3ラウンドで相手をノックアウトした。

Sense（1）

(transitive, boxing) To knock someone out, to render someone unconscious.

Joe KO'd the opposing boxer.

Sense（2）

(intransitive, sports) To start play.

KOs

（ present singular third-person ）

KO's

（ present singular third-person ）

KO'ing

（ participle present ）

KO'd

（ participle past ）

KO'd

（ past ）