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.
The more eyes watching out for problems, the better the chance to head off a disaster. John Shumway, CBS News, 8 Jan. 2026 Here are some red flags to watch out for. Michelle Mastro, Martha Stewart, 8 Jan. 2026 Read below about what to expect and watch out for, including topics like marijuana and the IPS debate. Joe Mutascio, IndyStar, 8 Jan. 2026 These are the key races to watch out for that will define the coming years in the Legislature. Rebecca Schneid, Time, 30 Dec. 2025 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 10 Jan. 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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