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English definition of “informant”

informant

noun [C]     /ɪnˈfɔː.mənt/ US  /-ˈfɔːr-/
someone who gives information to another person or organization: a police/secret informant Our survey is based on information from over 200 informants.Speakers and talkersRelating to detection and solving crimes
(Definition of informant noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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