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.
(..) Great. So I've decided I'm going to collaborate with you. Great. So, what exactly is it you do? I know you chatter on about it all the time, but I've never really paid attention. Right now, I'm designing an experiment to study the soft component... ...of cosmic radiation at sea level, (..)2008 TvShow: The Big Bang Theory Title: The Jerusalem Duality Season: 1 Episode 12