keep a (close) watch

keep a (close) watch

To guard, protect, or ensure the welfare of someone or something, often through close observation. I felt better sending the kids to camp when I knew Mrs. James would be there to keep a close watch over them. I can't help but feeling that I had an angel keeping a watch over me that day.
See also: keep, watch
Farlex Dictionary of Idioms.
See also:
  • keep (close) watch
  • keep (close) watch over (someone or something)
  • keep watch
  • keep watch over
  • watch over
  • keep a close watch over (someone or something)
  • stakeout
  • send (one) round the twist
  • nature abhors a vacuum
  • send by