biennium

noun

bi·​en·​ni·​um bī-ˈe-nē-əm How to pronounce biennium (audio)
plural bienniums or biennia bī-ˈe-nē-ə How to pronounce biennium (audio)
: a period of two years

Examples of biennium 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.
And second, state appropriations for the upcoming biennium will not be sufficient to cover basic increases in personnel costs like retirement and medical benefits. Michael T. Nietzel, Forbes.com, 4 Aug. 2025 And a corporate tax surcharge that was supposed to expire would be extended to 2028, raising another $128 million over the coming biennium. Keith M. Phaneuf, Hartford Courant, 31 July 2025 Rothman had asked for an $856 million increase over the 2025-27 biennium. Cleo Krejci, jsonline.com, 9 July 2025 Their budget leaves about $3 billion in reserves by the end of the biennium ― more than 13% of the state's revenues, and a greater amount than the House proposed. Kayla Dwyer, IndyStar, 2 July 2025 See All Example Sentences for biennium

Word History

Etymology

Latin, from bi- + annus year — more at annual

First Known Use

1699, in the meaning defined above

Time Traveler
The first known use of biennium was in 1699

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Cite this Entry

“Biennium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biennium. Accessed 11 Sep. 2025.

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