Open English Wordnet
Nouns
(n)chatter, chatteringthe high-pitched continuing noise made by animals (birds or monkeys) Verbs
(v)chatter, clickclick repeatedly or uncontrollably“Chattering teeth” (v)chattercut unevenly with a chattering tool (v)chew the fat, shoot the breeze, chat, confabulate, confab, chitchat, chit-chat, chatter, chaffer, natter, gossip, jaw, claver, visittalk socially without exchanging too much information“the men were sitting in the cafe and shooting the breeze” (v)chatter, piffle, palaver, prate, tittle-tattle, twaddle, clack, maunder, prattle, blab, gibber, tattle, blabber, gabblespeak (about unimportant matters) rapidly and incessantly (v)chattermake noise as if chattering away“The magpies were chattering in the trees”