thirty-one
Americannoun
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a cardinal number, 30 plus 1.
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a symbol for this number, as 31 or XXXI.
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a set of this many persons or things.
adjective
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
California is one of thirty-one states that have passed laws to restrict the use of political deepfakes.
From Salon • May 24, 2026
Esmaeil Baqaei said Iran had "had no negotiations with America in these thirty-one days," referring to the duration of the war.
From BBC • Mar. 31, 2026
“We have had no negotiations with America in these thirty-one days,” Iran’s foreign ministry spokesperson said in a post on X External link, as translated into English.
From Barron's • Mar. 30, 2026
By the time Frank Sinatra stepped into the studio to record “Strangers in the Night” on April 11, 1966, he had already been singing professionally for thirty-one years and recording since 1939.
From New York Times • Oct. 13, 2022
“And if the Ministry hasn’t found any hidden codes in this book in thirty-one days, I doubt that I will.”
From "Harry Potter and the Deathly Hallows" by J.K. Rowling
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
