thirty-one

American  

[thur-tee-wuhn] / ˈθɜr tiˈwʌn /

noun

1. a cardinal number, 30 plus 1.

2. a symbol for this number, as 31 or XXXI.

3. a set of this many persons or things.

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adjective

1. amounting to 31 in number.

Example Sentences

In his translated post on X, Esmaeil Baqaei wrote, “We have had no negotiations with America in these thirty-one days.”

From Barron's • Mar. 31, 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

Although the Soviet Union reported that only thirty-one people died as a direct result of the accident, more than 200,000 had to be resettled in the wake of the disaster,

From Textbooks • Dec. 14, 2022

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

Aunt Ophelia said she had been in labor for thirty-one hours with Nina.

From "P.S. I Miss You" by Jen Petro-Roy