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.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use no-no in a sentence
Pio Nono, however, showed no inclination to place himself in the power of his protectors.A History of the Nineteenth Century, Year by Year | Edwin Emerson
I afterwards found that these despatches influenced very much the important step taken by Pio Nono a few days afterwards.Sketches From My Life | Hobart Pasha
When they wish to pluck any flower or fruit from the tree, they ask permission from the nono or genius to pluck it.The Philippine Islands, 1493-1898 | Various
It has frequently been alleged that parrots may live a hundred years: Nono has established the fact by living still longer.
In short, Nono was a stylish and eminently respectable old bird.
British Dictionary definitions for Nono
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