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ninety

[nahyn-tee] /ˈnaɪn ti/
noun, plural nineties.
1.
a cardinal number, ten times nine.
2.
a symbol for this number, as 90 or XC.
3.
a set of this many persons or things.
4.
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.
adjective
5.
amounting to 90 in number.
Origin of ninety
1000
before 1000; Middle English nineti, Old English nigontig. See nine, -ty1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for ninety
Contemporary Examples
Historical Examples
  • Do you mean that you have earned ninety cents to-day, Robert?

    Brave and Bold Horatio Alger
  • The marketman handed Robert ninety cents, which he pocketed with satisfaction.

    Brave and Bold Horatio Alger
  • Diablo's got ninety to carry, an' he gave the other twenty pounds to-day.

    Thoroughbreds W. A. Fraser
  • Would not any one think, now, you were an old man of ninety?

  • The wood, therefore, was perhaps eighty or ninety years old.

    The Village Watch-Tower (AKA Kate Douglas Riggs) Kate Douglas Wiggin
British Dictionary definitions for ninety

ninety

/ˈnaɪntɪ/
noun (pl) -ties
1.
the cardinal number that is the product of ten and nine See also number (sense 1)
2.
a numeral, 90, XC, etc, representing this number
3.
something represented by, representing, or consisting of 90 units
determiner
4.
  1. amounting to ninety: ninety times out of a hundred
  2. (as pronoun): at least ninety are thought to be missing
Word Origin
Old English nigontig
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for ninety
n.

Old English nigontig, from nine + -tig "group of ten" (see -ty (1)). Cognate with Old Frisian niontich, Middle Dutch negentich, Dutch negentig, German neunzig.

Online Etymology Dictionary, © 2010 Douglas Harper
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9
10
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