- 1[intransitive] chatter (away/on) (to somebody) (about something) to talk quickly and continuously, especially about things that are not important They chattered away happily for a while. The children chattered to each other excitedly about the next day's events.
- 2[intransitive] (of teeth) to knock together continuously because you are cold or frightened Her teeth chattered as she dressed.
- 3[intransitive] (of birds or monkeys) to make a series of short high sounds The only sounds we could hear were the birds chattering in the trees.
NAmE//ˈtʃæt̮ər//Verb Forms present simple I / you / we / they chatter
he / she / it chatters
past simple chattered
-ing form chattering