Just the way you have spelt it in your question: ninety.
Ninety is spelled as n-i-n-e-t-y.
It seems like there may be a typo in your question. Did you mean to ask how to spell a different word correctly? If you provide the word you would like assistance with, I can help you spell it correctly.
The word, locally, is spelt correctly in the question.
pedikulosis is the correct spelling.
Ninety-nine.
That is the correct spelling of the number ninety(90).
ninety-one
the ninety-first
The word form is five hundred ninety-three and ninety-eight hundredths.
ninety-one dollars and ninety-eight cents.
Ninety-three point zero five.
Sardoodledum.
You spelled it correctly.
You spelled it correctly.
There is no such word as 'deaserd' - did you spell it correctly ?
bye
That is the correct spelling.
You have spelled it correctly.