plural no-no's or no-nos
: something unacceptable or forbidden

Examples of no-no in a Sentence

Recent Examples on the Web But being glued to your screen at a networking event is a no-no. Ginny Hogan, Forbes, 14 Feb. 2024 Starting such a platform without telling the principal is a no-no and the upset administration confronts Hazel abut her hasty and perhaps unethical decisions. Mary Ann Grossmann, Twin Cities, 11 Feb. 2024 Patches prevent you from picking at or squeezing the blister, which is a major no-no. Danielle Sinay, Glamour, 7 Feb. 2024 Hats During the National Anthem Respect is a big part of Southern culture, so wearing your ball cap during the national anthem is a big no-no. Valerie Fraser Luesse, Southern Living, 5 Feb. 2024 That seems to have been a no-no in the past, but CBS highlighted them. Reader Commentary, Baltimore Sun, 3 Feb. 2024 Definite no-no’s: Snooping through the hostess’ medicine cabinet or asking for a to-go plate. Charlottefive Staff, Charlotte Observer, 31 Jan. 2024 That’s typically a no-no, and a great way to shorten the life of cables, and even connections. PCMAG, 26 Jan. 2024 In golf any infraction is a no-no, to the extent that players are expected to call their own fouls for the slightest infringement. David Papineau, WSJ, 14 Dec. 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'no-no.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

circa 1942, in the meaning defined at sense 1

Time Traveler
The first known use of no-no was circa 1942

Dictionary Entries Near no-no

Cite this Entry

“No-no.” Dictionary, Merriam-Webster, Accessed 29 Feb. 2024.

Kids Definition


plural no-no's or no-nos
: something that is unacceptable or forbidden

More from Merriam-Webster on no-no

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