killer Meaning in the Cambridge Learner’s Dictionary
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Meaning of “killer” - Learner’s Dictionary

killer

noun [C]
 
 
/ˈkɪlər/
B1 someone who kills, or a disease, substance, or animal that kills: Cancer and heart disease are the UK's biggest killers. →  See also serial killer Murderers and attackersKillingMurder and attempted murder
(Definition of killer from the Cambridge Learner’s Dictionary © Cambridge University Press)
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