The Correct spelling is: ninety
Common misspellings of the word ninety are:
How do you spell ninety?. It is not ninty
n., pl. -ties.
- The cardinal number equal to 9 Ã— 10.
- A decade or the numbers from 90 to 99: My grandparents are in their nineties. During the heat wave, the temperature stayed in the nineties.
- often Nineties The decade from 90 to 99 in a century.
[Middle English ninti, from Old English nigontig.]ninety nine'ty adj. & pron.