knock out (1)

This page is about the phrasal verb knock out (1).

Meaning: If you are knocked out, you are hit so hard that you lose consciousness.

For example:

  • knock out sb Muhammad Ali knocked out George Foreman in the eighth round and won the fight.

  • knock sb out He slipped over in the bathroom and knocked himself out.

Note: The abbreviation "KO" is sometimes used, and pronounced "kay-oh".

Quick Quiz:

In which sport are competitors most likely to be knocked out?

a. golf

b. tennis

c. boxing

Phrasal verbs grammar

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Contributor: Matt Errey