English edit

English ordinal numbers
 <  80th 81st 82nd  > 
    Cardinal : eighty-one
    Ordinal : eighty-first

Adjective edit

eighty-first

  1. The ordinal form of the number eighty-one, describing a person or thing in position number 81 of a sequence.
    The answer appears on the eighty-first page of the book.
    She finished eighty-first in the race.

Usage notes edit

English ordinal numbers may function as either an adjective or as a noun, and almost never appear in the plural.

Synonyms edit

Translations edit

Noun edit

eighty-first (plural eighty-firsts)

  1. One of eighty-one equal parts of a whole.
    An eighty-first of 1620 is 20.

Translations edit