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WordReference Random House Unabridged Dictionary of American English © 2024nine•ti•eth (nīn′tē ith),USA pronunciation adj. - next after the eighty-ninth;
being the ordinal number for 90. - being one of 90 equal parts.
n. - a ninetieth part, esp. of one (1⁄90).
- the ninetieth member of a series.
- Middle English nyntithe, Old English nigenteotha. See ninety, -eth2 bef. 1100
Collins Concise English Dictionary © HarperCollins Publishers:: ninetieth /ˈnaɪntɪɪθ/ adj - (usually prenominal) being the ordinal number of ninety in numbering or counting order, position, time, etc. Often written: 90th
- (as noun): the ninetieth in succession
n - one of 90 approximately equal parts of something
- (as modifier): a ninetieth part
- the fraction equal to one divided by 90 ( 1⁄90)
nine•ty /ˈnaɪnti/USA pronunciation n., pl. -ties, adj. n. [countable] - a cardinal number, equal to ten times nine.
- a symbol for this number, such as 90 or XC.
- a set of this many persons or things.
- nineties, [usually: the + ~] the numbers from 90 through 99, as in referring to the years of a lifetime or of a century or to degrees of temperature.
adj. [before a noun] - amounting to 90 in number.
nine•ti•eth, adj., n. [countable] WordReference Random House Unabridged Dictionary of American English © 2024nine•ty (nīn′tē),USA pronunciation n., pl. -ties, adj. n. - a cardinal number, ten times nine.
- a symbol for this number, as 90 or XC.
- a set of this many persons or things.
- nineties, the numbers, years, degrees, or the like, from 90 through 99, as in referring to numbered streets, indicating the years of a lifetime or of a century, or degrees of temperature:His grandmother is in her nineties.
adj. - amounting to 90 in number.
- Middle English nineti, Old English nigontig. See nine, -ty1 bef. 1000
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