killer Meaning, definition in Cambridge English Dictionary
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Meaning of "killer" - English Dictionary

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killernoun

uk   /ˈkɪl.ər/  us   //

killer noun (DEATH)

B1 [C] someone who kills another person: Police are still hoping to find the dead woman's killer. [C] something that kills people, especially a disease or other illness: Cancer and heart disease are the UK's biggest killers. [C] something that destroys something: This chemical is found in most weedkillers.
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killer noun (EFFORT)

[S] informal something that is very difficult: The last question was a real killer.

killer noun (AMUSEMENT)

[C] US and Australian English informal a very entertaining or skilful person, story, or performance: Dizzy was a real killer on the trumpet.
killer
adjective [before noun] uk   us  
a killer disease killer bees
(Definition of killer from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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