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Definitions

no-no

[noh-noh] / ˈnoʊˌnoʊ /




















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:

"Virtue signalling" about why you are taking time off is another no-no.

From BBC Aug. 17, 2026

Putting EU money behind nuclear projects was long a no-no, with the 27-nation bloc focusing on renewables in the race to cut planet warming emissions.

From Barron's Mar. 10, 2026

The biggest no-no: Uploading documents with personal information into a publicly available AI tool.

From MarketWatch Feb. 17, 2026

Matthew Tkachuk, Sam Bennett and Brad Marchand, a trade deadline acquisition, throw insults in the face-off circle and make not-so-accidental contact with rival goalies—a serious no-no in hockey’s unwritten code.

From The Wall Street Journal Jun. 18, 2025

But even that was a no-no for Savanna’s party.

From "Wonder" by R. J. Palacio

There is also a list of no-no’s in terms of foods with “side effects”: Be easy on the garlic and omit raw onions altogether, not to mention beans.

From Slate Sep. 27, 2018

We’re talking about “K” signs along the upper deck railing, superstitious whispers for a pitcher who has taken 11 no-hitters into the sixth inning in his last 71 starts and completed two of those no-no’s.

From Washington Post Jun. 28, 2017

Jeering is common, and fans often yell out in the middle of a point or as a player is about to serve - no-no’s in tennis.

From Washington Times Aug. 8, 2016

The same sighing-and-hand-wringing routine applies to all of the supposed pregnancy no-no’s: wine, sushi, hot baths, intense exercise, flying, scooping cat litter.

From Time Dec. 2, 2014

‘Hey, I don’t know. Some Cherokee taboos were permanent no-no’s, like killing eagles.’

From "Blood of Olympus" by Rick Riordan

“Natural light is the best. I can’t do a dark house. The no-no of no-nos is bad floor plan and flow, and not enough natural light.”

From MarketWatch Nov. 24, 2025

With that in mind, it might not be surprising that "Saturday Night Live" gave the button-pushing comedian a list of "no-nos" during his recent appearance on the long-running series.

From Salon Feb. 16, 2025

Among the social no-nos: Surreptitiously recording others and reading on the device while seeming to ignore others.

From Los Angeles Times Sep. 17, 2024

He learned about worm bins, three-bin compost systems, and how black soldier flies could help decompose meat and dairy products, which are often compost no-nos.

From New York Times May 13, 2022

The few Excel sheets in question, during one recent encounter, turned out to have 400 columns each, replete with mismatched terms and other coding no-nos, said Mr. Althouse, who works at the University of Pittsburgh.

From The Wall Street Journal Oct. 5, 2018




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