Talk, especially meaningless or unimportant talk. / The sound of talking. / The vocalisations of a Eurasian magpie, Pica pica. / The vocalisations of various birds or other animals.

(intransitive) To talk idly. / (intransitive) Of teeth, machinery, etc, to make a noise by rapid collisions. / To utter sounds which somewhat resemble language, but are inarticulate and indistinct.

One who chats. / (Internet) A user of chat rooms.

(dated) The mistress of a castle or large household.

(chemistry) A principle stating that, if a chemical system at equilibrium experiences a change in concentration, temperature, or total pressure, the equilibrium will shift in order to minimize that change.

plural of chateau

plural of chateau

A port and town on the River Medway in Kent, England; the home of the Royal dockyard. / A town, the county seat of Pittsylvania County, Virginia, United States.

plural of chattel

A person who chatters; a chatterbox. / Any of several passerine birds, mostly from South America; especially the cotingas.