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!

Synonyms of watch out

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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.
Car drivers are not all that great about watching out for motorcyclists. — Seth Abramovitch, HollywoodReporter, 15 Oct. 2026 Members, watch out in the afternoon for our full Club analysis on BNY's quarter in your texts and emails. — Alexa Lomonaco, CNBC, 15 Oct. 2026 The last couple of years, my list of things to watch out for has spilled off the page and onto the floor. — Justin Levitt, The Conversation, 13 Oct. 2026 If boosters can improve NIL salaries – Northwestern is said to have half of Ohio State's $50-$55M NIL budget – watch out. — Joe Kinsey Outkick, FOXNews.com, 3 Oct. 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

Rhymes for watch out

See All Rhymes for watch out

Browse Nearby Words

watch oneself
watch out
watch over
See all Nearby Words

Cite this Entry

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

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Kids Definition

watch out

verb
: to be on the lookout
watch out for cars
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