English edit

English ordinal numbers
 <  50th 51st 52nd  > 
    Cardinal : fifty-one
    Ordinal : fifty-first

Adjective edit

fifty-first (not comparable)

  1. The ordinal form of the number fifty-one, describing a person or thing in position number 51 of a sequence.
    The answer appears on the fifty-first page of the book.
    She finished fifty-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

fifty-first (plural fifty-firsts)

  1. One of fifty-one equal parts of a whole.
    A fifty-first of 1020 is 20.