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Meaning of eighty-first

eight•y-first

Pronunciation: (ā'tē fûrst'), [key]
— adj.
  1. next after the eightieth; being the ordinal number for 81.
  2. being one of 81 equal parts.
—n.
  1. an eighty-first part, esp. of one ().
  2. the eighty-first member of a series.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.