keep one's eyes open

English

Verb

keep one's eyes open (third-person singular simple present keeps one's eyes open, present participle keeping one's eyes open, simple past and past participle kept one's eyes open)

To be on the alert; watch carefully or vigilantly for something.
Coordinate term: keep one's ears open

Related terms

Further reading

“keep your eyes/ears open” in Longman Dictionary of Contemporary English, Longman.

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