Definition of extensionnext
1
as in stretching
the act of making longer the board's extension of the school year drew howls of protest

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2
as in addition
a smaller structure added to a main building the new extension will connect the house with what is now a freestanding garage

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Example Sentences

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.
Recent Examples of extension The extension will carry Crabtree-Ireland through the next round of negotiations with the major studios, with the current deal set to expire in June 2030. — Gene Maddaus, Variety, 25 Oct. 2026 Moton signed a two-year extension before the 2025 season and is thus under contract through the 2027 season, according to Over The Cap. — Alex Zietlow, Charlotte Observer, 25 Oct. 2026 Beckman portrayed the first lady's work on the ceasefire as an extension of her efforts to help reunite Russian and Ukrainian children with their families after they were separated by Russia's war against Ukraine. — Ben Finley, Arkansas Online, 24 Oct. 2026 A day later, Sitake signed an extension reportedly worth $9 million annually. — Dana O’Neil, CNN Money, 24 Oct. 2026 See All Example Sentences for extension
Recent Examples of Synonyms for extension
Noun
  • Other days included yoga and stretching, catching hundreds of balls on the Jugs machine or recovering at Kollective, a social performance club in Austin.
    — Sam Jane, Denver Post, 10 Oct. 2026
  • Daily laundry service after a day spent hiking, stretching, and sprinting is a welcome bonus.
    — Condé Nast, Condé Nast Traveler, 8 Oct. 2026
Noun
  • The addition to SpaceX’s GAAP profits per share would be minuscule.
    — Jim Edwards, Fortune, 22 Oct. 2026
  • The addition of this ad so close to Election Day roiled races in Ohio up and down the ballot.
    — Philip Elliott, Time, 21 Oct. 2026
Noun
  • Also, ibogaine’s prolongation of the heart’s QT intervals carries a real risk of fatal arrhythmia.
    — Michelle Lhooq, New Yorker, 7 Aug. 2026
  • The prolongation was 242 days in 2023 and 346 days in 2024, according to the report.
    — Steve Sadin, Chicago Tribune, 17 Mar. 2026

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Cite this Entry

“Extension.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/extension. Accessed 27 Oct. 2026.

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