Word Study
ninety
CIDE DICTIONARY
Nine times ten; eighty-nine and one more; as, ninety men. [1913 Webster]
ninety, n.
- The sum of nine times ten; the number greater by a unit than eighty-nine; ninety units or objects. [1913 Webster]
- A symbol representing ninety units, as 90 or xc. [1913 Webster]
OXFORD DICTIONARY
ninety, n. & adj.
--n. (pl. -ies)
1 the product of nine and ten.
2 a symbol for this (90, xc, XC).
3 (in pl.) the numbers from 90 to 99, esp. the years of a century or of a person's life.
--adj. that amount to ninety.
--n. (pl. -ies)
1 the product of nine and ten.
2 a symbol for this (90, xc, XC).
3 (in pl.) the numbers from 90 to 99, esp. the years of a century or of a person's life.
--adj. that amount to ninety.
Idiom
ninety-first, -second , etc. the ordinal numbers between ninetieth and a hundredth. ninety-one, -two , etc. the cardinal numbers between ninety and a hundred.
Derivative
ninetieth adj. & n. ninetyfold adj. & adv.
Etymology
OE nigontig
ROGET THESAURUS
ninety
Five
N five, five, cinque, quint, quincux, six, half-a- dozen, half dozen, seven, eight, nine, three times three, dicker, ten, decade, eleven, twelve, dozen, thirteen, long dozen, baker's dozen, quintuplet, twenty, score, twenty-four, four and twenty, two dozen, twenty-five, five and twenty, quarter of a hundred, forty, two score, fifty, half a hundred, sixty, three score, seventy, three score and ten, eighty, four score, ninety, fourscore and ten, sestiad, hundred, centenary, hecatomb, century, hundredweight, cwt, one hundred and forty-four, gross, thousand, chiliad, millennium, thousand years, grand, myriad, ten thousand, ban, man, ten thousand years, banzai, lac, one hundred thousand, plum, million, thousand million, milliard, billion, trillion, five, quinary, quintuple, fifth, senary, sextuple, sixth, seventh, septuple, octuple, eighth, ninefold, ninth, tenfold, decimal, denary, decuple, tenth, eleventh, duodenary, duodenal, twelfth, in one's 'teens, thirteenth, vicesimal, vigesimal, twentieth, twenty-fourth, vicenary, vicennial, centuple, centuplicate, centennial, centenary, centurial, secular, hundredth, thousandth.For further exploring for "ninety" in Webster Dictionary Online