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'm holding these bad boys back as best as I can, but the thing is it's not up to me. The stomach got a direct line to these babies,... ...and I'm picking up a lot of chatter! So, I'll talk to the claws, but in exchange... ...next week, all your food comes to me. - But that's not our deal! (..)2008 Bolt