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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The iconic highway reaches its centennial this year. Usa Today Network, USA Today, 10 June 2026 This story is part of a retrospective series commemorating NBC’s centennial that Variety is publishing through a partnership with NBCUniversal. Cynthia Littleton, Variety, 10 June 2026 For organizers, there was no more fitting place to begin the centennial celebration. Daily News, 9 June 2026 The takeover is the centerpiece of Gurney’s centennial offerings. Amy Louise Bailey, Travel + Leisure, 8 June 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 12 Jun. 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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