a.

1. 击倒对手的
2. 淘汰的
3. 【口】给人深刻印象的

n.

1. （拳击）击倒；判败击倒
2. 淘汰赛
3. 【口】给人留下深刻印象的人（或物）
4. 【口】绝代佳人

n.

1. an act of knocking someone out.
2. Brit. a tournament in which the loser in each round is eliminated.
3. informal an extremely attractive or impressive person or thing.