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

Relevance

Example Sentences

Recent Examples of Synonyms for jam-up
jam
Noun
  • Jacob Misiorowski provided four innings of one-run ball for Milwaukee, and his fellow rookie, Chad Patrick, pitched the club out of a massive jam to keep Milwaukee ahead in the sixth.
    The Athletic MLB Staff, New York Times, 12 Oct. 2025
  • Grandmothers elevate something as simple as toast and jam to high status.
    Anne Byrn, Southern Living, 12 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.

Browse Nearby Words

Cite this Entry

“Jam-up.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/jam-up. Accessed 18 Oct. 2025.

Last Updated: - Updated example sentences
Love words? Need even more definitions?

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