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

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

Pearson, who was thirty-one, had worked at Wendy’s for seven years, but his prospects for promotion conflicted with his child-care schedule; he had three children, ages ten, six, and three, whose custody he shared.

From The New Yorker • Jun. 29, 2020

Those shoulders that bloomed in Nsukka, that grew wide and capable, have sagged in the thirty-one months that he has been here.

From "Purple Hibiscus" by Chimamanda Ngozi Adichie