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informant

nounmasculine/femininegeneral usecommon/ĩfuɾˈmɐ̃tɨ/in·for·man·te

Definition

A person who provides information, especially confidentially or secretly, to an authority, organization, or media outlet.

“The police acted based on information provided by an anonymous informant.”

“The journalist protected the identity of his informant.”

anonymous informantpolice informantconfidential informantprotect the informant