next after the ninetieth; being the ordinal number for 91.
being one of 91 equal parts.


a ninety-first part, especially of one (1/91).
the ninety-first member of a series. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for ninety-first

Historical Examples of ninety-first

  • The allusion is to Sir Christopher Wren, who died in 1723, in his ninety-first year.

  • The One Hundred and Ninety-first was on our left, beyond the battery.

    In The Ranks

    R. E. McBride

  • 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

  • At that epoch, Father Gillenormand was well past his ninety-first birthday.

    Les Misrables

    Victor Hugo