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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.

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

There’s literally an ad-lib, which is a no-no with August Wilson, that Boy Willie says to his niece, “You feel that? That’s your family, that’s your blood.”

From Los Angeles Times • Dec. 19, 2024

This is another no-no for the Truman kids.

From "Drama High" by Michael Sokolove