centennial

noun

cen·​ten·​ni·​al sen-ˈte-nē-əl How to pronounce centennial (audio)
: a 100th anniversary or its celebration
centennial adjective
centennially adverb

Examples of centennial 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.
Watts was hired in 2024 to research, write and share the 100-year history of the forest preserve district for its centennial celebration in 2025. Mike Danahey, Chicago Tribune, 21 Apr. 2026 The late Queen was born on April 21, 1926, and on her posthumous centennial, the Prince and Princess of Wales honored her in a new picture tribute shared to social media. Janine Henni, PEOPLE, 21 Apr. 2026 The Founding and Future of the Schomburg Collection, which commemorates the centennial of the New York Public Library’s acquisition of Arturo Schomburg’s collection. Laura E. Helton, Literary Hub, 20 Apr. 2026 American Airlines celebrated 100 years of flights during a celebration at Charlotte Douglas International Airport, one of several centennial events held at major hubs across the country. Chase Jordan, Charlotte Observer, 15 Apr. 2026 See All Example Sentences for centennial

Word History

Etymology

Latin centum + English -ennial (as in biennial)

First Known Use

1791, in the meaning defined above

Time Traveler
The first known use of centennial was in 1791

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Cite this Entry

“Centennial.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/centennial. Accessed 29 Apr. 2026.

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

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