Dictionary.com

no-no

[ noh-noh ]
/ ˈnoʊˌnoʊ /
Save This Word!
See synonyms for: no-no / no-nos on Thesaurus.com

noun, plural no-nos, no-no's.Informal.
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.
QUIZ
CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?
There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?
Question 1 of 7
Which sentence is correct?

Origin of no-no

1940–45, Americanism; reduplication of no1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use no-no in a sentence

British Dictionary definitions for no-no

Nono
/ (Italian ˈnɔːno) /

noun
Luigi (luˈiːdʒi). 1924–90, Italian composer of 12-tone music
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
FEEDBACK