Dictionary.com
Thesaurus.com

twenty-first

American  
[twen-tee-furst, twuhn-] / ˈtwɛn tiˈfɜrst, ˈtwʌn- /

adjective

  1. next after the twentieth; being the ordinal number for 21.

  2. being one of 21 equal parts.


noun

  1. a twenty-first part, especially of one (1/21).

  2. the twenty-first member of a series.

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.

“You weren’t supposed to bring that into the twenty-first century,” JB said.

From Literature

Your brother is banished to the dark ages of the twenty-first century?

From Literature

Which brings us to "Look Up," his twenty-first studio album and easily his finest record in decades.

From Salon

At half past six on the twenty-first of June 1922, when Count Alexander Ilyich Rostov was escorted through the gates of the Kremlin onto Red Square, it was glorious and cool.

From Los Angeles Times

"We find that rapid ocean warming, at approximately triple the historical rate, is likely committed over the twenty-first century, with widespread increases in ice-shelf melting, including in regions crucial for ice-sheet stability," the authors write.

From Salon