[ nahyn-tee-furst ]

  1. next after the ninetieth; being the ordinal number for 91.

  2. being one of 91 equal parts.

  1. a ninety-first part, especially of one (1/91).

  2. the ninety-first member of a series.

Words Nearby ninety-first Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use ninety-first in a sentence

  • This book, in 1895, is in its ninety-first edition of one thousand copies.

    Pulpit and Press | Mary Baker Eddy
  • Since then she has revised it many times, and the ninety-first edition is announced.

    Pulpit and Press | Mary Baker Eddy
  • It opens with the ninety-first year of the reign of the Judges—a time which corresponds to our year one of the Christian era.

  • During these succeeding twenty years it has been greatly revised and enlarged, and it is now in its ninety-first edition.

    Pulpit and Press | Mary Baker Eddy
  • The first meeting, according to the Abb Costaing, was not in a church, but in a meadow—as appears by the ninety-first sonnet.