as in jam
a crowded mass (as of cars) that impedes or blocks movement knowing that there was a big traffic jam-up ahead, we took the detour that the locals always use

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Example Sentences

Recent Examples of Synonyms for jam-up
jam
Noun
  • There would be no replay of that 2022 failure, which featured the same inning (sixth), the same jam (bases loaded) and the same long walk (for John Schneider to pull Gausman).
    Mitch Bannon, New York Times, 5 Oct. 2025
  • My preferred brand of apple butter is made by McCutcheon's, a family-run company based in Frederick, Maryland that makes a wide array of jams, jellies, and preserves.
    Lisa Cericola, Southern Living, 5 Oct. 2025
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.

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“Jam-up.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/jam-up. Accessed 8 Oct. 2025.

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