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Definitions

undo

[uhn-doo] / ʌnˈdu /




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.

Regaining weight can undo many of the positive effects of weight loss, including improvements in blood sugar, blood pressure, and cholesterol levels.

From Science Daily • May 17, 2026

Musk’s lawsuit is an existential threat to that relationship as he seeks to wind OpenAI back to its 2015 nonprofit roots—as well as undo its special relationship with Microsoft.

From Barron's • May 15, 2026

Yet it was his searches on encrypted messaging platforms that began to undo his plot, leading him to both police and MI5 agents operating undercover online.

From BBC • May 1, 2026

Peel-and-stick wallpaper and temporary bathroom tiles and kitchen backsplashes are other changes that you can easily undo when you move out without causing permanent damage to the property.

From MarketWatch • Apr. 30, 2026

I ignored Velia’s comment and started to undo the knots that held the blanket together around Pita’s body.

From "Summer of the Mariposas" by Guadalupe García McCall




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