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 change means cars would need to watch out for e-bikes on the road. Idaho Statesman, 30 June 2026 Stay inside, look out for your neighbors, drink plenty of water and watch out for signs of heat exhaustion such as confusion, nausea and trouble breathing. Amethyst Martinez, USA Today, 30 June 2026 Each puzzle has exactly one solution, so watch out for words or items that seem to belong to multiple categories! Will Jeanes, New York Times, 28 June 2026 Here are what steakhouses have newly opened, and which ones to watch out for. Ella Gonzales, Fort Worth Star-Telegram, 26 June 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 5 Jul. 2026.

Kids Definition

watch out

verb
: to be on the lookout
watch out for cars

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