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Definitions

American Heritage® Dictionary of the English Language, Fourth Edition

  1. n. Informal Something unacceptable or impermissible: "Even though his company wasn't the one involved in the case, what he did is considered a definite no-no” ( Mike Royko).
  2. n. Informal A social blunder; a faux pas.

Wiktionary

  1. n. Something that is forbidden, prohibited, discouraged or taboo.
  2. n. A no-hitter; a game in which no batter on one of the teams got a hit.
  3. n. A no hitter, a game in which no batter on one of the teams has gotten a hit yet.

GNU Webster's 1913

  1. n. Something improper, unethical, inadvisable, or illegal.

Examples

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Lists

These user-created lists contain the word ‘no-no’.

Comments

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  • bilby No-no is not a double negative in the conventional sense. Ain't you never seen one o' those? May 30, 2011

  • jmjarmstrong JM thinks double negatives are a no-no. May 30, 2011

‘no-no’ has been looked up 1054 times, added to 8 lists, commented on 2 times, and is not a valid Scrabble word.