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Noun: blabber  bla-bu(r)
  1. One who reveals confidential information to the police or other authority
    - informer, betrayer, rat, squealer
  2. Someone who gossips indiscreetly
    - tattletale [US], tattler, taleteller, talebearer, telltale, blabbermouth
Verb: blabber  bla-bu(r)
  1. Speak (about unimportant matters) rapidly and incessantly
    - chatter, piffle, palaver, prate, tittle-tattle, twaddle, clack, maunder, prattle, blab, gibber, tattle, gabble, rabbit [Brit], vapor [Brit, Cdn], witter [Brit], twattle [UK, dialect], yatter [Brit], yabber [Brit]

Derived forms: blabbering, blabbered, blabbers

Type of: gossip, gossiper, gossipmonger, informant, mouth, newsmonger, rumormonger [US], rumourmonger [Brit, Cdn], source, speak, talk, utter, verbalise [Brit], verbalize