Synonyms of rat

1 Syllable
lice, welch, worm, fink, crier, snitch, worms, cur, sneak, curs, nark, cad, criers
2 Syllables
louse, stoolie, rotter, stinker, squealer, tattlers, stinkers, weasels, finked, ratted, ratfink, tattler, tipster, whistler, whistlers, snitcher, gassers, snitching, betrayer, weasel, welches, polly, tipsters, judas, rotters, source, caitiff, squealers, finking, turncoat, betrayers
3 Syllables
informers, notifier, accusers, informer, weaseling, blabberer, weaseled, accuser, blabbermouth, defected, canary, canaries, renounced, vulture, renouncing, denouncing, denounced, renounce, two-timer, backstabber, informant
4 Syllables
centipede, repudiate, repudiating, runagate, sleazemonger, tattletale, whistle-blower, double-crosser, apostate
5 Syllables
tergiversator, apostacize