centennial

noun

cen·​ten·​ni·​al sen-ˈte-nē-əl 

: a 100th anniversary or its celebration

centennial adjective

centennially

sen-ˈte-nē-ə-lē 

adverb

Examples of centennial in a Sentence

Recent Examples on the Web

Previous popular designs have included cards commemorating the centennial of the 19th Amendment and the FIFA World Cup, Patrick said. — Iris Kwok, Los Angeles Times, 19 Sep. 2026

Alongside the centennial, Collective 222 has appointed Jane Owen PR to lead global public relations for the company and its representation of the Hemingway brand. — Andreas Wiseman, Deadline, 16 Sep. 2026

As the Grand Ole Opry recently celebrated its centennial anniversary, the venerable country music institution and the world’s longest running radio show has continued setting new milestones. — Jessica Nicholson, Billboard, 15 Sep. 2026

Airport and city leaders gathered at the top of a hill, as jet engines roared behind them, to bury a time capsule of the airport’s first 100 years, one of the final ceremonies of the institution’s centennial celebrations. — Mirtha Donastorg, AJC.com, 8 Sep. 2026

Word History

Etymology

Latin centum + English -ennial (as in biennial)

First Known Use

1791, in the meaning defined above

Rhymes for centennial

• bicentennial
• biennial
• decennial
• millennial
• perennial
• quadrennial
• quinquennial
• triennial
• sesquicentennial

Kids Definition

centennial

1 of 2 noun

cen·​ten·​ni·​al

sen-ˈten-ē-əl

: a 100th anniversary or its celebration

centennial

2 of 2 adjective

: relating to a period of 100 years

centennially

-ē-ə-lē

adverb