Word · Frequency #16321
knockout
击昏的；使人昏迷的
That makes someone unconscious
常用于拳击等场景
- 1.
Rendering someone unconscious.
使某人失去知觉。
- 2.
Amazing; gorgeous; beautiful.
令人惊叹的；迷人的；美丽的。
- 3.
Designating an organism in which a particular gene has been removed or deactivated.
指某个基因被移除或停用的生物。
- 4.
Causing elimination from a competition.
导致被淘汰出比赛。
极美的；令人惊艳的；淘汰的；决定出局的；基因敲除的；使某人失去知觉。；令人惊叹的；迷人的；美丽的。
In use
She wore a knockout dress to the party.
The singer gave a knockout performance that brought the audience to its feet.
The sunset was absolutely knockout, with vibrant colors across the sky.
knockout + noun
表示“使失去知觉”或“决定性的”时，通常放在名词前使用。
The champion ended the fight with a knockout punch.
冠军以一记击倒性重拳结束了比赛。
look + knockout
这是非正式用法，表示“极美、令人惊艳”，常用在 look 等系动词后。
She looked absolutely knockout in her red dress.
她穿那条红裙子看起来惊艳极了。
Common mistakes
He knockout the guard with one punch.
Connections
Collocations
- knockout punch
- 击倒拳
- The boxer ended the fight with a knockout punch.这名拳手以一记击倒拳结束了比赛。
- knockout blow
- 决定性打击
- The scandal was a knockout blow to his career.这桩丑闻对他的职业生涯是决定性打击。
- knockout stage
- 淘汰赛阶段
- The team was eliminated in the knockout stage.该队在淘汰赛阶段被淘汰。
- knockout mouse
- 基因敲除小鼠
- Researchers used a knockout mouse to study the gene.研究人员使用基因敲除小鼠来研究该基因。
- knockout performance
- 令人惊叹的表演
- She gave a knockout performance in the final.她在决赛中奉献了令人惊叹的表演。
Idioms & figurative uses
Learner notes
Memory Tip
联想：knockout 拆成 knock（敲）+ out（出），一拳把人敲出去就是“击昏”，所以又可形容美得让人失去意识、比赛被淘汰、基因被敲除。
Context & Register
语域：mixed 常见场景：combat sports、informal compliments、genetics research、sports competitions knockout 作形容词时，语域随使用领域变化：在搏击、体育比赛中指“击昏的”或“淘汰的”，属中性；形容人“极美、令人惊艳”时多用于非正式场合；在遗传学中指“基因敲除的”，比较常见于专业/正式语境。实际使用时需根据语境选择合适语域。
Pronunciation & Spelling
The final syllable of 'knockout' is pronounced /aʊt/. Genuine rhymes: out, shout, about, doubt, trout. Note: 'knock' is not a rhyme—it is the first spelling part of the target and is pronounced /nɒk/ (AmE /nɑːk/). In 'doubt' the 'b' is silent.
Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.