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Definition killer in British English

killer noun

[countable] noun
/ˈkɪlə(r)/
1

someone who kills another person

Example

The young woman's killer has not yet been found.

Example

a hired/trained killer

Example

a child/cop killer (=someone who has killed a child or police officer)

Synonyms and related words
1.1

something that kills people

Example

Cancer is the second largest killer in the US.

Example

a killer disease/virus

Synonyms and related words
1.2

something that kills or destroys something

Example

weed killer

Example

a passion killer

Synonyms and related words
2

something that is very difficult

Example

The test was a killer.

Synonyms and related words
Definition killer in British English