See blab in Webster's New World Roget's A-Z Thesaurus II
verb
To disclose in a breach of confidence:
betray, divulge, expose, give away, let out, reveal, tell, uncover, unveil. (Informal) spill. (Archaic) discover. Idioms: let slip, let the cat out of the bag, spill the beans, tell all. See showTo engage in or spread gossip:
gossip, noise, rumor, talk, tattle, tittle-tattle, whisper. Idioms: tell tales, tell tales out of school. See words
noun
A person habitually engaged in idle talk about others:
gossip, gossiper, gossipmonger, newsmonger, rumormonger, scandalmonger, tabby, talebearer, taleteller, tattle, tattler, tattletale, telltale, whisperer. (Slang) yenta. See wordsIncessant and usually inconsequential talk:
babble, blabber, chat, chatter, chitchat, jabber, palaver, prate, prattle, small talk. (Slang) gab, gas, yak. See words
Learn more about blab