keep someone posted

keep (one) posted

To continue to inform someone about something so that they have current information. Congratulations on getting that interview! Keep me posted on how it goes! Right now, her condition is stable. We promise to keep you posted as she improves.
See also: keep, post
Farlex Dictionary of Idioms.

keep someone posted

COMMON If you keep someone posted, you continue giving them the latest information about a situation. She made me promise to keep her posted on developments. I'll keep you posted with what's happening.
See also: keep, post, someone
Collins COBUILD Idioms Dictionary, 3rd ed.

keep someone posted

keep someone informed of the latest developments.
Posted-up was a mid 19th-century Americanism meaning ‘well informed’.
See also: keep, post, someone
Farlex Partner Idioms Dictionary
See also:
  • keep (one) posted
  • keep posted
  • keep somebody posted
  • Gen
  • gen (someone) up on (something)
  • enlighten
  • enlighten (someone) about (someone or something)
  • enlighten (someone) on (someone or something)
  • dump on (someone or something)
  • dump on someone/something