Merriam-Webster's Dictionary and Thesaurus - Merriam-Webster [223]
cha·su·ble noun : the outer vestment of the priest at mass
chat noun 1 : light familiar informal talk
2 : online discussion in a chat room
— chat verb
Synonyms
chatter, chitchat, gabfest, gossip, palaver, rap, talk; also colloquy, conference, discourse, parley, powwow, symposium; debate, dialogue, exchange, give-and-take
chat verb : to talk in a light and familiar manner
Synonyms
gab, jaw, palaver, patter, talk, visit; also gossip, tattle; descant, discuss, expatiate
usually chat with speak, talk
châ·teau noun, plural châ·teaus or châ·teaux [ORIGIN: F, fr. OF chastel, fr. L castellum castle, dim. of castra camp]
1 : a feudal castle in France
2 : a large country house
3 : a French vineyard estate
chat·e·laine noun 1 : the mistress of a chateau
2 : a clasp or hook for a watch, purse, or keys
chat·tel noun 1 : an item of tangible property other than real estate
2 : a person held in servitude : SLAVE, BONDMAN
Synonyms usually chattels
effects, holdings, paraphernalia, possession, things—more at POSSESSION
chat room noun : a real-time online interactive discussion group
1chatter verb 1 : to utter speechlike but meaningless sounds
2 : to talk idly, incessantly, or fast
3 : to click repeatedly or uncontrollably
Synonyms
[1] babble, drivel, gabble, gibber, jabber, prattle, sputter—more at BABBLE
[2] babble, blab, chat, gab, gabble, gas, jabber, jaw, palaver, patter, prattle, rap, rattle, run on—more at CHAT
2chatter noun : idle talk
chat·ter·box noun : one who talks incessantly
Synonyms
jabberer, magpie, talker; also gossip, tattler, tattletale
chat·ter·er noun : a person who rambles on and on
chat·ty adjective chat·ti·er; -est 1 : fond of chatting : TALKATIVE