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.
Hill recommends watching out for aphids during springtime. Abby Monteil, The Spruce, 12 June 2026 New York Knicks fans are being warned to watch out for schemers trying to sell fake tickets to NBA Finals watch parties. Tim McNicholas, CBS News, 12 June 2026 There are lots of pedestrians to watch out for near these places. Los Angeles Times, 12 June 2026 With many fans still searching for tickets, experts are warning people to watch out for scams that could cost them money or leave them without a valid ticket on match day. Tiffani Jackson, Fort Worth Star-Telegram, 11 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 16 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