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.
Here are what steakhouses have newly opened, and which ones to watch out for. Ella Gonzales, Fort Worth Star-Telegram, 26 June 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, 25 June 2026 Traders will also watch out for the final first-quarter gross domestic product reading, readings from May's personal income and preliminary durable goods orders indexes, as well as initial jobless claims from the week ended June 20. Lisa Kailai Han, CNBC, 24 June 2026 As World Cup soccer fans cheer for their teams in Los Angeles and stadiums across the nation, FBI agents are working in command centers, watching out for unauthorized flying objects. Richard Winton, Los Angeles Times, 18 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 29 Jun. 2026.

Kids Definition

watch out

verb
: to be on the lookout
watch out for cars

More from Merriam-Webster on watch out

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster