ninetieth

American  

[nahyn-tee-ith] / ˈnaɪn ti ɪθ /

adjective

1. next after the eighty-ninth; being the ordinal number for 90.

2. being one of 90 equal parts.

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noun

• ninetieths
  plural

1. a ninetieth part, especially of one (1/90).

2. the ninetieth member of a series.

ninetieth British  

/ ˈnaɪntɪɪθ /

adjective

1. (usually prenominal)

   1. being the ordinal number of ninety in numbering or counting order, position, time, etc. Often written: 90th

   2. ( as noun )

      the ninetieth in succession

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noun

1. 1. one of 90 approximately equal parts of something

   2. ( as modifier )

      a ninetieth part

2. the fraction equal to one divided by 90 ( 1/ 90 )

Other Word Forms

Noun Inflected Forms

• ninetieths
  plural

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Etymology

Origin of ninetieth

before 1100; Middle English nyntithe, Old English nigenteotha. See ninety, -eth ²

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Example Sentences

See Examples For:

ninetieth ninetieths

Now, strangely, I draw breath Well past my ninetieth.

From New York Times ● Jan. 9, 2023

Since 1989, a household at the tenth percentile is barely better off, while a household at the ninetieth percentile has almost one-third more income.

From Salon ● Dec. 1, 2019

I told him I was enlisting to go with him on his ninetieth birthday parachute jump.

From New York Times ● Dec. 2, 2018

And then, in the ninetieth minute, Quality England emerged to save the day.

From The New Yorker ● Jun. 19, 2018

I took off my hat and looked at it for about the ninetieth time.

From "The Catcher in the Rye" by J. D. Salinger

This is why those accounts stand in dollars and ninetieths, a notation so puzzling to many.

From History of the United States, Volume 2 by Elisha Benjamin Andrews

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