Synonyms of tattlers

1 Syllable
fink, snitch, rat
2 Syllables
squealer, bigmouth, tipster, gossip, windbag
3 Syllables
blabberer, blabbermouth, canary, telltale, informer
4 Syllables
busybody, rumormonger, scandalmonger, talebearer, taleteller, whistleblower, troublemaker