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Meaning of ninetieth

nine•ti•eth

Pronunciation: (nīn'tē-ith), [key]
— adj.
  1. next after the eighty-ninth; being the ordinal number for 90.
  2. being one of 90 equal parts.
—n.
  1. a ninetieth part, esp. of one ().
  2. the ninetieth member of a series.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
nineteenth hole nine-to-five