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

Synonyms & Similar Words

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Example Sentences

Recent Examples of Synonyms for jam-up
jam
Noun
  • These traditional Jewish desserts are made with a simple shortbread dough and filled with your favorite fruit jam.
    Lizzy Briskin, Better Homes & Gardens, 9 Nov. 2025
  • Markle's orange marmalade, strawberry jam and raspberry jam are included in the set.
    Janelle Ash, FOXNews.com, 9 Nov. 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 16 Nov. 2025.

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