knockout

American  

[nok-out] / ˈnɒkˌaʊt /

noun

1. an act or instance of knocking out.

2. the state or fact of being knocked out.

3. a knockout blow.

4. Informal. a person or thing overwhelmingly attractive, appealing, or successful.

5. a panel in a casing, can, or box, especially of metal or plastic, so designed that it can readily be removed, as by punching, hammering, or cutting, to provide an opening into the interior.

   a knockout in a junction box.

6. Machinery. a device for knocking something loose, as finished work from a lathe chuck.

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adjective

1. that knocks out.

   the knockout punch.

knockout British  

/ ˈnɒkˌaʊt /

noun

1. the act of rendering unconscious

2. a blow that renders an opponent unconscious

3. 1. a competition in which competitors are eliminated progressively

   2. ( as modifier )

      a knockout contest

4. a series of absurd invented games, esp obstacle races, involving physical effort or skill

5. informal a person or thing that is overwhelmingly impressive or attractive

   she's a knockout

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verb

1. to render unconscious, esp by a blow

2. boxing to defeat (an opponent) by a knockout

3. to destroy, damage, or injure badly

4. to eliminate, esp in a knockout competition

5. informal to overwhelm or amaze, esp with admiration or favourable reaction

   I was knocked out by that new song

6. to remove the ashes from (one's pipe) by tapping

Etymology

Origin of knockout

1810–20; 1935–40 knockout for def. 4; noun, adj. use of verb phrase knock out

Example Sentences

The finer point, though, is that India may not have made it to the knockouts in the first place had it not been for Samson's mature innings.

From BBC

Since that defeat by the Proteas, Suryakumar's men have effectively had four knockout matches.

From BBC

A victory over the Koreans on Monday would send the Aussies back to the knockout rounds.

From The Wall Street Journal

Bortoleto missed a chance to start higher because his car broke down on the way back to the pits after the second knockout session.

From BBC

Stagflation, however, might prove to be the knockout punch.

From Barron's

Related Words

• technical knockout