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

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 )

Etymology

Origin of ninetieth

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

Example Sentences

There is a bike lane on Ninetieth Street.

From The New Yorker • Oct. 18, 2015

As he and his sisters walked home, they heard some noise on Ninetieth Street.

From "The Dead and the Gone" by Susan Beth Pfeffer

There, on Ninetieth and Columbus, were a dozen men playing touch football.

From "The Dead and the Gone" by Susan Beth Pfeffer

Until we came out of the park at Ninetieth Street.

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

The One Hundred and Ninetieth was on the flank most of the day.

From In The Ranks From the Wilderness to Appomattox Court House by McBride, R. E.