informant [informants]◼◼◼(one who relays confidential information) noun [UK: ɪn.ˈfɔː.mənt] [US: ˌɪn.ˈfɔːr.mənt]I can't disclose any information about the informant. = Je ne peux dévoiler aucune information au sujet de l'informateur.
snitch◼◼◻(informer, usually one who betrays his group) noun [UK: snɪtʃ] [US: ˈsnɪtʃ]