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Verb: blab (blabbed,blabbing)  blab
  1. Divulge confidential information or secrets
    "Be careful--his secretary blabs";
    - spill the beans, let the cat out of the bag, talk, tattle, peach, babble, sing, babble out, blab out
     
  2. Speak (about unimportant matters) rapidly and incessantly
    - chatter, piffle, palaver, prate, tittle-tattle, twaddle, clack, maunder, prattle, gibber, tattle, blabber, gabble, rabbit [Brit], vapor [Brit, Cdn], witter [Brit], yatter [Brit], yabber [Brit]

Derived forms: blabs, blabbed, blabbing

Type of: break, bring out, disclose, discover, divulge, expose, give away, lay bare, let on, let out, mouth, reveal, speak, talk, unwrap, utter, verbalise [Brit], verbalize

Encyclopedia: Blab