THESAURUS
stool pigeon
agent provocateur, betrayer, blab, blabber, blabberer, blabbermouth, canary, capper, come-on man, decoy, delator, fink, informer, narc, nark, peacher, plant, shill, snitch, snitcher, spy, squealer, stoolie, talebearer, tattler, tattletale, telltale, tipster, whistle-blower
ROGET THESAURUS
stool pigeon
Disclosure
N
disclosure, retection, unveiling, deterration, revealment, revelation, exposition, exposure, expose, whole truth, telltale, acknowledgment, avowal, confession, confessional, shrift, bursting of a bubble, denouement, tattletale, snitch, fink,
stool pigeon, canary, disclosed, open, public, Int, out with it!, the murder is out, a light breaks in upon one, the scales fall from one's eyes, the eyes are opened.
Deceiver
N
deceiver &c (deceive), dissembler, hypocrite, sophist, Pharisee, Jesuit, Mawworm, Pecksniff, Joseph Surface, Tartufe, Janus, serpent, snake in the grass, cockatrice, Judas, wolf in sheep's clothing, jilt, shuffler,
stool pigeon, liar &c (lie), story-teller, perjurer, false witness, menteur a triple etage, Scapin, bunko steerer, carpetbagger, capper, faker, fraud, four flusher, horse coper, ringer, spieler, straw bidder, imposter, pretender, soi-disant, humbug, adventurer, Cagliostro, Fernam Mendez Pinto, ass in lion's skin, actor, quack, charlatan, mountebank, saltimbanco, saltimbanque, empiric, quacksalver, medicaster, Rosicrucian, gypsy, man of straw, conjuror, juggler, trickster, prestidigitator, jockey, crimp, decoy, decoy duck, rogue, knave, cheat, swindler, jobber, saint abroad and a devil at home.