adj, noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   One of thirty-one equal parts of a whole.

   "A thirty-first of 620 is 20."

Adjective

1. 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."

Adjective

1. 1
   coming next after the thirtieth in position wordnet

Synonyms

All synonyms

31stthirty-oneth

Example

More examples

"It's valid until March thirty-first, nineteen-ninety-seven."

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.