informant Synonyms

source witnesser witness sources tipster fink testifier telltale teller tattler talebearer swearer squealer spy stool pigeon nark snitch monitors eaves-dropper rat fink Plants notifier infiltrator deep throat Abwehr whistleblower invigilator tattletale stoolie snitcher sneak reporter replier dictionary denunciator denouncer compurgator complainant cojuror canary betrayer authority attester annunciator agent adviser earwitness encyclopedia enlightener reference