Idiom Breakdown

watch out

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Definition

To be aware or conscious; to look closely or carefully; to use caution. Often used in the imperative.

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Origins

watch + out

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In Context

"Watch out for low doorways, so you don’t hit your head."
"Being exiled from the Nexus was a huge shock, I still can't believe Tann did that. But at least Sloane's watching out for us and giving us whatever land we want. We hope to make a life out here and we've got our very own lakeside property with a view."

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Also Said As

to beware
to get away
to heed
to mind

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See Also

careful
caution
caveat