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Definition knock out in British English

knock out phrasal verb

[transitive] phrasal verb
1

to make someone unconscious

Example

He hit me and nearly knocked me out.

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2

to make someone leave a competition by defeating them

Example

England had been knocked out of the World Cup by West Germany.

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3

to destroy something, or to stop it working

Example

The earthquake knocked out power supplies in many parts of the city.

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4

to impress someone very much

Example

The response to my work has absolutely knocked me out.

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5

to make someone feel very shocked or upset

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6

to produce something quickly or carelessly

Example

They've been knocking out candles at their factory since 1831.

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7

to make someone lose a quality

Example

All the enthusiasm had been knocked out of him.

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8

to do a lot of work in order to achieve something

Synonyms and related words
Definition knock out in British English