keep (close) watch for (someone or something)

To be alert to potential hazards. Keep close watch for any intruders. We need someone to keep watch for Mom and Dad so we don't get caught.

See also: for, keep, watch

See also:

keep (a) (close) watch on (someone or something)
keep a close eye/watch on somebody/something
keep a close watch on
keep (one's) eyes on (someone or something)
keep (someone) in the picture
keep away
keep away (from someone or something)
keep by
keep (something) by
keep faith with (someone or something)

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