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View synonyms for

no-no

[noh-noh]

noun

Informal.

plural

no-nos, no-no's 
  1. anything that is forbidden or not advisable, as because of being improper or unsafe.

    If you want to lose weight, rich desserts are a no-no.



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Word History and Origins

Origin of no-no1

1940–45, reduplication of no 1
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Example Sentences

Examples have not been reviewed.

Separating the inseparable pair is a no-no.

From

“Using AI to help prepare for interview questions is fine, but reading off a screen with interview responses is a total breach of trust and a big no-no for me,” she said.

From

Mr Yapobi said the organisers in Ivory Coast had long been trying to promote a more natural look - for example cosmetic surgery is a no-no and skin lightening is frowned upon.

From

And the grass was synthetic, which was also a no-no for a World Cup.

From

Other sports journalists also occasionally opine on politics, long a no-no in their profession.

From

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Nonononobedience