- a cardinal number, 30 plus 1.
- a symbol for this number, as 31 or XXXI.
- a set of this many persons or things.
- amounting to 31 in number.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for thirty-one
If you have a Balance Board and download the game before January 31, Wii Fit U is free for thirty-one days.Can I Lose Weight Playing Video Games?
January 14, 2014
Thirty-one other states accepted the money; Louisiana was the first to turn it down.A History of Grambling University Football: The First Shot in Player Liberation
November 9, 2013
“Thirty-one percent of all homes sold in December were on the market for less than a month,” NAR reported.Housing’s Back—and That’s Bad News
January 23, 2013
Thirty-one percent of recruiters say that if your skills are “no longer in demand,” you may be screwed.
Thirty-one percent say being unemployed for more than a year.
I have held two and twenty towns, and I have been at the intaking of thirty-one.The White Company
Arthur Conan Doyle
"There's just thirty-one grasshoppers in that can," said he.
The scant four million people of 1790 had grown to thirty-one and a half million.The Age of Invention
She, too, had found it hard to hold her attention to the Thirty-one Dynasties.Highacres
You mean thirty-one, for when I knew you I couldn't have been more than fourteen.The Memoires of Casanova, Complete
Jacques Casanova de Seingalt