watch out

verb

watched out; watching out; watches out

intransitive verb

: to be vigilant or alert : be on the lookout
you'd better watch out
watch out for the tree!

Examples of watch out in a Sentence

watch out for hazards in the road
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
So people have to really watch out, especially on the freeway. Charlie Lapastora, CBS News, 17 Feb. 2026 Details aren’t finalized yet, but the championship to this tournament has potential as a matchup to watch out for. Tom Mulherin, Boston Herald, 16 Feb. 2026 Each puzzle has exactly one solution, so watch out for words or items that seem to belong to multiple categories! Mark Cooper, New York Times, 14 Feb. 2026 Here are three to watch out for. Kamaron McNair, CNBC, 14 Feb. 2026 See All Example Sentences for watch out

Word History

First Known Use

1845, in the meaning defined above

Time Traveler
The first known use of watch out was in 1845

Browse Nearby Words

Cite this Entry

“Watch out.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/watch%20out. Accessed 18 Feb. 2026.

Kids Definition

watch out

verb
: to be on the lookout
watch out for cars

More from Merriam-Webster on watch out

Last Updated: - Updated example sentences
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