American Dictionary

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Definition kill off in American English

kill off phrasal verb

[transitive] phrasal verb
1

to destroy living things so that most or all of them are dead

Example

Antibiotics may kill off beneficial bacteria.

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2

to stop, get rid of, or destroy something

Example

In an unexpected action, the corporation announced that it would kill off its two least productive subsidiaries.

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3

if a writer kills off someone in a book, play, movie, or television program, they make them die in the story

Example

She was killed off at the end of the second series.

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Definition kill off in American English