noun

• (countable) Someone who likes to talk about other people's private or personal business.
  "Be careful what you say to him: he’s a bit of a gossip."
• (uncountable) Idle talk about someone’s private or personal matters, especially about someone not present.
  "According to the latest gossip, their relationship is on the rocks."
• (uncountable) Idle conversation in general.
  "The parlor was always bright and attractive, the chessboard ready, the piano in tune, plenty of gay gossip, and a nice little supper set forth in tempting style."
• (uncountable) A genre in contemporary media, usually focused on the personal affairs of celebrities.
  "a gossip columnist"

verb

• (intransitive) To talk about someone else's private or personal business, especially in a manner that spreads the information.
  "This Place then is no other than the Chandler’s Shop; the known Seat of all the News; or, as it is vulgarly called, Gossiping, in every Parish in England."
• (intransitive) To talk idly.
  "[…] on seats beneath the trees, the old men group of an evening to drink their ale and gossip over village politics;"
• (obsolete) To stand godfather to; to provide godparents for.
  "[…] a world Of pretty, fond, adoptious christendoms [i.e. Christian names], That blinking Cupid gossips."
• (obsolete) To enjoy oneself during festivities, to make merry.
  "[…] those baby eyes That never saw the giant world enraged; Nor met with fortune other than at feasts, Full of warm blood, of mirth, of gossiping."