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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 With the deadline just before midnight Friday night, the league wouldn’t confirm that the sides won’t reach an extension. Doug Feinberg, Chicago Tribune, 9 Jan. 2026 There are a few key benefits of the reserve’s extension. Maura Fox, San Diego Union-Tribune, 9 Jan. 2026 The Wizards are not expected to pursue an immediate extension, choosing instead to evaluate Young's health following recent knee and quad injuries. Christopher Harris, CBS News, 9 Jan. 2026 Permission to operate boats on the lake is granted by the city for five-year periods with renewable five-year extensions. Michael Barnes, Austin American Statesman, 8 Jan. 2026 See All Example Sentences for extension
Recent Examples of Synonyms for extension
Noun
  • Knitted garments are best stored folded to prevent stretching.
    Mary Marlowe Leverette, The Spruce, 8 Jan. 2026
  • New research suggests that light daily movement, such as gentle stretching, a leisurely stroll, or easy household chores like vacuuming are linked to a lower risk of death in people with these overlapping conditions, called cardiovascular-kidney-metabolic (CKM) syndrome.
    Tom Gavin, EverydayHealth.com, 7 Jan. 2026
Noun
  • In addition to his political activism, Michael was involved with several charities, including serving as chair of the John Douglas French Alzheimer’s Foundation board.
    Charna Flam, PEOPLE, 7 Jan. 2026
  • In addition to this, beat reporters Mike Kaye and Alex Zietlow broke down the matchup and offered their predictions on the contest, as is customary.
    Scott Fowler, Charlotte Observer, 7 Jan. 2026

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Cite this Entry

“Extension.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/extension. Accessed 12 Jan. 2026.

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