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)

1. To be on the alert; watch carefully or vigilantly for something.

   Coordinate term: keep one's ears open

Related terms

• clear-eyed
• open-eyed
• with one's eyes open

 

Further reading

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