Definitions of babble:

• noun:   gibberish resembling the sounds of a baby
• verb:   to talk foolishly

  Example: "The two women babbled and crooned at the baby"

• verb:   utter meaningless sounds, like a baby, or utter in an incoherent way
• verb:   flow in an irregular current with a bubbling noise
• verb:   divulge confidential information or secrets