v. 1 prattle, gabble, jabber, prate, patter, gibber, cackle, jibber-jabber, Brit chaffer, Colloq gab, jaw, Brit natter, witter, rabbit on or away, waffle He just kept chattering on about nothing 2 clatter, rattle It was so cold my teeth were chattering
n. 3 prattle, prate, patter, gossip, cackle, jabbering, chattering I don't want to hear any more chatter in the library