- informer, betrayer, rat, squealer, blabber - one who reveals confidential information in return for money
--1 is a kind of informant, source
--1 has particulars:fink, snitch, snitcher, stoolpigeon, stoolie, sneak, sneaker, canary; nark, copper's nark; supergrass Derived forms: verb betray2, verb betray5 - double-crosser, double-dealer, two-timer, betrayer, traitor - a person who says one thing and does another
--2 is a kind of deceiver, cheat, cheater, trickster, beguiler, slicker
--2 has particulars: JudasDerived form: verb betray6