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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.

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“Don’t do anything you don’t know how to undo without checking with someone else first,” Mallon says.

From The Wall Street Journal Aug. 1, 2026

Losing coverage does not merely undo the benefits of having had it before.

From Salon Jul. 19, 2026

With Tuesday's lawsuit, one of Hollywood's powerful labor unions hopes to undo the US Department of Justice's approval.

From Barron's Jul. 15, 2026

"He tells me if he could serve 10 times the sentence and be able to undo everything that happened, he would."

From BBC Jul. 8, 2026

“You did it to yourself, it’s not my fault you cannot undo it. And I am hardly being reckless.”

From "The Night Circus" by Erin Morgenstern

The two-segment operating model undoes changes made by former chief executive Bernard Looney that were initiated as part of BP’s pivot to lower-carbon sources of energy.

From The Wall Street Journal Jun. 9, 2026

The decision undoes a ruling by US District Judge Maame E Frimpong in Los Angeles, who had said that there is a "mountain of evidence" showing the raids were violating the US Constitution.

From BBC Sep. 8, 2025

Falling victim to financial fraud can be extremely devastating because it undoes years of your hard work and savings in an instant.

From Salon Apr. 2, 2025

The property, listed at $39 million, is in the midst of renovation as its new owner undoes Ye’s head-scratching remodeling choices.

From Los Angeles Times Mar. 27, 2025

Everything that comes of morning undoes itself before nightfall: rooster walks back into forest, fires die down, birds coo-coo-coo, sun sinks away, sky bleeds, passes out, goes dark, nothing exists.

From "The Poisonwood Bible" by Barbara Kingsolver

Pamela Price was recalled in 2024 and replaced by Ursula Jones Dickson, who quickly undid many of Price’s signature policies.

From Los Angeles Times May 29, 2026

Unlike the long-ago transition to the cloud, which undid many existing software firms, incumbents aren’t being complacent this time around.

From Barron's Mar. 13, 2026

Collette, who has two teenage children and lives in Sydney, discusses the altar she keeps at home, the power of birth order and the mohair sweater that nearly undid her.

From The Wall Street Journal Dec. 15, 2025

How did public health backslide so hard that it undid decades of progress—and is there any hope we can get back on track?

From Slate Jul. 11, 2025

Sensing the group’s anticipation, though not mine in particular, Josn slowly undid the brass clasps and drew out his lute with an air of studied nonchalance.

From "The Name of the Wind" by Patrick Rothfuss

Enthusiasm around artificial intelligence had sent some stocks surging too far, too fast this year — and to some extent, that came undone in July.

From MarketWatch Aug. 1, 2026

Ellis' granddaughter Laura Enston said that although the impact of the sentence on her family could not be undone, she felt justice had been done after 70 years.

From BBC Jul. 8, 2026

Yet that same bundle can quickly come undone.

From Science Daily Jun. 15, 2026

In one of McClain’s final notes, he wrote: “It all came undone today.”

From The Wall Street Journal Jun. 7, 2026

And Reggie's man bun came undone, and he appeared to be crying.

From "Millionaires for the Month" by Stacey McAnulty

And in its zeal to purge the newsroom of dissent, CBS and Weiss may have inadvertently triggered the creation of their most dangerous future competitor — and accidentally set the stage for its own undoing.

From Salon Aug. 8, 2026

A spell has erased Peter Parker from the world’s memory — the price of undoing the public exposure of his identity — leaving him a stranger to his best friend, Ned, and to MJ.

From Los Angeles Times Jul. 30, 2026

Think of it as undoing all the bad things that sitting does.

From Barron's Jun. 27, 2026

The consternation that his relationship, and subsequent marriage, to the girl triggers among the town inhabitants will ultimately lead to Kenrex’s long-delayed undoing.

From The Wall Street Journal May 7, 2026

The triangle knot had been pulled so tight that undoing it was like trying to unravel a rock.

From "Look Both Ways" by Jason Reynolds




Vocabulary lists containing undo


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