Phrasal Verbs

knock out (1)

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


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.

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