Chatter/ˈtʃætər/ Definition 1 of 6Pro Tip 1/2Background Sound Use 'chatter' to describe ongoing background noises, often created by multiple sources. The restaurant was filled with the chatter of diners. Pro Tip 2/2Continuous Noise 'Chatter' implies a rapid succession of sounds, not one isolated noise. The chatter of keyboards is constant in the office.