thirty-first

Adjective

 * 1)  The ordinal form of the number thirty-one, describing a person or thing in position number 31 of a sequence.
 * The answer appears on the thirty-first page of the book.
 * She finished thirty-first in the race.

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

Abbreviations

 * 31st, 31st

Translations

 * Afrikaans:
 * Esperanto: tridek-unua
 * Finnish: kolmaskymmenesensimmäinen, kolmaskymmenesyhdes
 * Hungarian:
 * Malayalam: മുപ്പത്തൊന്നാം
 * Spanish: trigésimo primero

Noun

 * 1)  One of thirty-one equal parts of a whole.
 * A thirty-first of 620 is 20.

Translations

 * Finnish: kolmaskymmenesyhdesosa