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twenty-four

American  
[twen-tee-fawr, -fohr, twuhn-] / ˈtwɛn tiˈfɔr, -ˈfoʊr, ˈtwʌn- /

noun

  1. a cardinal number, 20 plus 4.

  2. a symbol for this number, as 24 or XXIV.

  3. a set of this many persons or things.

adjective

  1. amounting to 24 in number.

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.

Bitcoin briefly topped $70,000 over the weekend but is now down 2.5% to $68,750 in the past twenty-four hours.

From Barron's • Feb. 16, 2026

“In the last twenty-four hours, my phone has become next to useless as I’ve received so many incoming messages and calls. It’s crazy,” he told MarketWatch in an interview.

From MarketWatch • Jan. 8, 2026

By the end of twenty-four hours, we had inches and inches of powdery, white snow — somewhere around 8”-10” all along the Coast from Texas to Florida.

From Salon • Jan. 29, 2025

A total of twenty-four employees across the business have been made redundant.

From BBC • Dec. 11, 2023

I have less than twenty-four hours to compose the perfect apology.

From "South of Somewhere" by Kalena Miller

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.