decennium

noun

de·​cen·​ni·​um di-ˈse-nē-əm How to pronounce decennium (audio)
plural decenniums or decennia di-ˈse-nē-ə How to pronounce decennium (audio)
: a period of 10 years : decade

Examples of decennium in a Sentence

Recent Examples on the Web According to design firm Bagaar's blog: Over the past decennium, users have grown accustomed to certain design patterns: positions, colors, icons... Samuel Axon, Ars Technica, 4 July 2019

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'decennium.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Latin, from decem + annus year — more at annual

First Known Use

1685, in the meaning defined above

Time Traveler
The first known use of decennium was in 1685

Dictionary Entries Near decennium

Cite this Entry

“Decennium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/decennium. Accessed 28 Mar. 2024.

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