Synonyms for blab Found 21 synonyms across 2 meanings for “blab”. divulge confidential information or secrets (verb) talktattlepeachbabblesing speak (about unimportant matters) rapidly and incessantly (verb) chatterpifflepalaverpratetittle-tattletwaddleclackmaunderprattlegibberblabbergabble Explore Related Words Rhymes with blabSynonyms for talkSynonyms for tattleSynonyms for peachSynonyms for babbleSynonyms for sing Synonym Finder | Rhyme Finder | Poetry Editor