1
: a number that is one more than 20 see Table of Numbers
2
[translation of French vingt-et-un] : blackjack sense 1
twenty-one adjective
twenty-one pronoun, plural in construction

Examples of twenty-one in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
At least half of the twenty-one delegates were from Quebec, three were from Cameroon, and the rest lived in or around Paris. Literary Hub, 27 Aug. 2026 According to the New York Times, Justice Department officials in a twenty-one-page filing presented the need for renovation as dire. News Desk, Artforum, 26 Aug. 2026 Dozens of young people, including a twenty-one-year-old professional footballer, drowned while seeking relief in open water; three French children died in broiling cars. Eric Klinenberg, New Yorker, 17 Aug. 2026 Input runs about twelve times cheaper and output about twenty-one times cheaper. Jon Markman, Forbes.com, 6 Aug. 2026 See All Example Sentences for twenty-one

Word History

First Known Use

circa 1611, in the meaning defined at sense 1

Time Traveler
The first known use of twenty-one was circa 1611

Browse Nearby Words

Cite this Entry

“Twenty-one.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/twenty-one. Accessed 2 Sep. 2026.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster