thirty-first

American  

[thur-tee-furst] / ˈθɜr tiˈfɜrst /

adjective

1. next after the thirtieth; being the ordinal number for 31.

2. being one of 31 equal parts.

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noun

1. a thirty-first part, especially of one (1/31).

2. the thirty-first member of a series.

Example Sentences

See Examples For:

thirty-first

Finland's application was processed in record time and it became the thirty-first member of the alliance earlier this month.

From Reuters ● Apr. 19, 2023

Thus, every time you play “Disc 2: High Rise” you start on the thirty-first floor of a building and must make you way down.

From Washington Post ● Mar. 14, 2019

But on the night of the thirty-first, when the stagehands asked for Gelb’s “last and best” offer, it became clear that each side had badly misjudged the other.

From The New Yorker ● Mar. 16, 2015

Anonymous doesn’t need to do anything on March thirty-first.

From Forbes ● Feb. 16, 2012

Three months later, on his thirty-first birthday, Francis Gary Powers was led by guards onto—appropriately enough—the stage of a massive theater.

From "Fallout: Spies, Superbombs, and the Ultimate Cold War Showdown" by Steve Sheinkin