eighty-ninth

[ ey-tee-nahynth ]
/ ˈeɪ tiˈnaɪnθ /
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adjective

next after the eighty-eighth; being the ordinal number for 89.
being one of 89 equal parts.

noun

an eighty-ninth part, especially of one (1/89).
the eighty-ninth member of a series.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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