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

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 (someone or something) by (some means)

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