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English definition of “nark”

nark

noun [C] (POLICE OFFICER)    /nɑːk/ US  /nɑːrk/ (also narc) US slang
a police officer whose job is to catch people who produce, sell, or use illegal drugsPeople who work for the police service
(Definition of nark noun (POLICE OFFICER) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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