ninety
/ˈnaɪntɪ/noun
(pl. -ies)
1- equivalent to the product of nine and ten; ten less than one hundred;90九十; 九十个：
a cheque for ninety pounds.
一张90英镑的支票。
(Roman numeral: xc or XC 罗马数字：xc 或XC.)
1.1
nineties
the numbers from 90 to 99, especially the years of a century or of a person's life.九十几; 九十年代; 九十几岁：art in the nineties.
90年代的艺术。
1.2
- ninety years old九十岁：
she is nearly ninety.
她快90岁了。
1.3
- ninety miles an hour时速九十英里：
we passed the junction doing about ninety.
我们以大约90英里的时速通过了路口。
派生词
ninetieth
ordinal numberninetyfold
adjective & adverb词源
Old English nigontig.