Synonyms and related words :
a tale-bearing animal, betrayer, blab, blabber, blabberer, blabbermouth, busybody, canary, delator, fink, gossip, gossip columnist, gossiper, gossipmonger, informer, narc, nark, newsmonger, newspaperman, peacher, quidnunc, rat, reporter, rumormonger, scandalmonger, sieve, sneak, snitch, snitcher, spy, squealer, stool pigeon, stoolie, tabby, taleteller, tattler, tattletale, telltale, tipster, tittle-tattler, troublemaker, whistle-blower, yenta