Definition of Chatter

Verb: chatter cha-tu(r)

Make a clicking sound repeatedly or uncontrollably
"Chattering teeth";
- click
Cut unevenly with a chattering tool
Talk socially without exchanging too much information
"the men were sitting in the cafe and chattering";
- chew the fat, shoot the breeze [N. Amer], chat, confabulate, confab, chitchat, chit-chat, chaffer, natter, gossip, jaw, claver [UK, dialect], visit, gas, gab
Speak (about unimportant matters) rapidly and incessantly
- piffle, palaver, prate, tittle-tattle, twaddle, clack, maunder, prattle, blab, gibber, tattle, blabber, gabble, vapor [Brit, Cdn], witter [Brit], rabbit [Brit], yabber [Brit], yatter [Brit]
Make noise as if chattering away
"The magpies were chattering in the trees"

Noun: chatter cha-tu(r)

Noisy talk
- yak, yack, yakety-yak, cackle, yackety-yak
The rapid series of noises made by the parts of a machine
- chattering
The high-pitched continuing noise made by animals (birds or monkeys)
- chattering