keep a weather eye open

An instruction to monitor someone or something, often because the person or thing in question may turn out to be dangerous. I think Tom's a thief, so keep a weather eye open around him. I'd keep a weather eye open with this storm that's brewing—we may have to evacuate.

keep a

/one's weather eye open

To keep watch; stay alert.

See also: keep

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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References in periodicals archive

It's mega-exciting when a guy comes on super-strong, but try to keep a little perspective and consider the sitch carefully.

Is your summer crush a keeper? How can you tell whether he's just good times for now--or worth hanging with past beach season? This quiz will shed some light

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