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Synonyms

watch out

British  

verb

  1. (intr, adverb) to be careful or on one's guard

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. a less common word for lookout

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
watch out Idioms  

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

But if the stock-market rally turns out to be an artificial-intelligence bubble, watch out.

From MarketWatch ● Nov. 3, 2026

"For the 42 million hotel nights forecast for 2026, that's not major. But watch out you don't underestimate the effects from repeated incidents."

From Barron's ● Oct. 21, 2026

Enjoy your night, and watch out for hungry whales!

From Slate ● Oct. 19, 2026

“There could be off-target effects that accidentally recruit and destroy healthy proteins. We just have to watch out for that.”

From The Wall Street Journal ● Oct. 15, 2026

“I’ll watch out for her,” Couch Douglas said.

From "The Parker Inheritance" by Varian Johnson

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