noun

• A person who talks, especially one who gives a speech, or is loquacious or garrulous.
• Any creature or machine that talks.
• (informal, media) A talk show
• (informal, media) A talk-show host.
• (informal, media) An all-talk radio station.
• (informal, media) A popular topic of conversation.
• (informal, politics) A talking point.
• (Internet) A stripped-down version of a MUD which is designed for talking, predating instant messengers; a kind of early chat room.
• (informal) Mouth.
• (marketing) A table talker or shelf-talker.