blab

1 to engage in casual or rambling conversation frequently calls her best friend and blabs for an hour Synonyms babble, chat, cackle, chaffer [British], chatter, chin [slang], converse, gab, gabble, gas, jabber, jaw, kibitz (also kibbitz), natter, palaver, patter, prate, prattle, rap, rattle, run on, schmooze (or shmooze), talk, twitter, visitRelated Words gossip, tattle; descant, discuss, expatiate; yak (also yack), yammer, yap

2 to relate sometimes questionable or secret information of a personal nature he blabs a lot, so never share a secret with him Synonyms gossip, dish, talk, tattle, wagRelated Words bandy (about), circulate, noise (about or abroad), rumor; blabber, disclose, divulge, reveal, tell; hint, imply, insinuate, intimate, let on, suggest; inform, report, snitch, squeal, tip (off); babble, spill; confideNear Antonyms clam up, shut up