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
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After the parade, attendees can also visit an artisan marketplace and learn about Opa-locka’s centennial history. Joshua Ceballos, Miami Herald, 13 May 2026 And yet, their names are mostly absent from the centennial celebrations. Jasmine Desiree, Los Angeles Times, 12 May 2026 The Academy has already announced plans to move the Oscars from ABC to YouTube after the centennial broadcast in 2028. Marcus Jones, IndieWire, 12 May 2026 For Albuquerque, that means looking beyond a quick stop on the way to Santa Fe to discover what New Mexico’s largest city really offers—especially as Route 66 celebrates its centennial in 2026. AFAR Media, 11 May 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 21 May. 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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