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

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

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

Synonyms & Similar Words

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 Nitrate pollution is a big problem for low-income, rural residents across the United States, said Samuel Sandoval Solis, a professor at the University of California-Davis and an extension specialist in water resources management. ABC News, 1 Apr. 2026 The Knicks will not have room on their payroll to stay beneath the second apron, re-sign Mitchell Robinson to a contract extension and match a competing offer when Diawara becomes a free agent. Kristian Winfield, New York Daily News, 1 Apr. 2026 Defensive tackle Quinnen Williams figured to be a contract extension candidate this offseason after the Cowboys acquired him at the trade deadline in November, but the two sides instead decided to restructure his deal and push money down the line. Nick Harris, Fort Worth Star-Telegram, 1 Apr. 2026 Critics of the decades-long extension argue projects could fluctuate across mayoral administrations, which may have differing opinions on where investments should go. Riley Bunch, AJC.com, 1 Apr. 2026 See All Example Sentences for extension
Recent Examples of Synonyms for extension
Noun
  • Then get here a little early, jumps on the BOSU ball, stretching, taping, and trying to stay warm as long as possible.
    Dom Amore, Hartford Courant, 31 Mar. 2026
  • Just five minutes of mindful movement, like gentle stretching or a quick yoga flow, can help lower stress hormones and support your body’s natural anti-inflammatory defenses.
    Lauren Manaker, SELF, 26 Mar. 2026
Noun
  • In addition to Slattery, Mardie Frye, Charlie Watson and Jayde Hudson scored goals in the shootout for Centennial.
    Darren Lauber, Fort Worth Star-Telegram, 1 Apr. 2026
  • Add remaining meringue in 3 batches, gently folding with a rubber spatula after each addition until only a few streaks of meringue remain (err on the side of undermixing to keep the cake batter billowy).
    Shilpa Uskokovic, Bon Appetit Magazine, 1 Apr. 2026
Noun
  • The prolongation was 242 days in 2023 and 346 days in 2024, according to the report.
    Steve Sadin, Chicago Tribune, 17 Mar. 2026

Browse Nearby Words

Cite this Entry

“Extension.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/extension. Accessed 5 Apr. 2026.

More from Merriam-Webster on extension

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster