nine·ty /ˈnaɪnti/
(a.)九十,90,九十個
Nine·ty a. Nine times ten; eighty-nine and one more; as, ninety men.
Nine·ty, n.; pl. Nineties
1. The sum of nine times ten; the number greater by a unit than eighty-nine; ninety units or objects.
2. A symbol representing ninety units, as 90 or xc.
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ninety
adj : being ten more than eighty [syn: 90, xc]
n : the cardinal number that is the product of ten and nine
[syn: 90, XC]