num
ninety
NYN-tee
num
1
The number 90, one more than eighty-nine and one less than ninety-one.
"Her grandmother just turned ninety."
How to Use Ninety
Learner’s notesIn plain EnglishThe number 90.
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Her grandmother just turned _____.
Etymology
From Old English hundniġontiġ, built ultimately from nine plus a suffix meaning "ten times."