• adj. 淘汰的；擊倒的；迷人的
• n. 淘汰賽；擊倒；給人留下深刻印象的人；絕代佳人

比喻用法。

knockout (n.)

also knock-out, in fighting, 1887, from verbal phrase knock out "to stun by a blow for a 10-count" in boxing, short for to knock out of time; see knock (v.) + out. Slang meaning "attractive person" is from 1892. To knock oneself out "make a great effort" is from 1936.

1. He delivered a knockout blow to all of his rivals.

他給所有對手以致命一擊。

來自柯林斯例句

2. She was a knockout in navy and scarlet.

她身著藏青色和鮮紅色相間的衣服，十分迷人。

來自柯林斯例句

3. The first story is a knockout.

第一個故事讓人印象深刻。

來自柯林斯例句

4. the knockout stages of the tournament

錦標賽的淘汰賽階段

來自《權威詞典》

5. The fight was won by a knockout.

這場拳擊以一擊將對方打倒而獲勝.

來自《現代英漢綜合大詞典》