1. Incessant talking, endless jabbering: The salesman kept up his babble until Annabel shut the door in his face.
2. A low, continuous sound not necessarily intended to be understood: The speaker shouted his responses to the accusations over the babble of the crowd.
3. The quiet flow or gentle sound of water as it moves along in a river, or in a smaller water way: During the night while camping out, Blaine and Gerda could hear the babble of the stream that was flowing nearby.

1. To make the quiet murmuring sound typical of a young child or baby: Karl's baby was babbling happily in his arms.
2. To engage in a seemingly endless chatter or conversation: Don't babble on the phone all day, Vance, get your assignment done.
3. To make the relatively quiet sound of flowing of water: People always appreciate the water which is continuously babbling in the fountain in front of the city center.