ninetieth Hear it!

ninetieth definition

nine·ti·eth (nīn′tē it̸h)

adjective

  1. preceded by eighty-nine others in a series; 90th
  2. designating any of the ninety equal parts of something

Etymology: ME nyntithe < OE nigenteothan: see ninety & -th

noun

  1. the one following the eighty-ninth
  2. any of the ninety equal parts of something;

adverb

in the ninetieth place, rank, group, etc.

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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