He couldn't stand their endless 'chatter' [='prattle'] about celebrities and movies.
He was 'chattering' [='jabbering'] away on a cell phone.
Children 'chattered' in the middle of the playground.
(..) I am guilty on all counts. I stand here, a victim of the influence of Emmanuel... (Winston) Under the spreading chestnut tree, I sold you, you sold me. And I ask only for you to accept my love of our Leader. (distant explosions) (chatter) (distant explosions) Can I help you? Anything special? (..)1984 1984