Jam and Open up

Opposite meaning terms

Jam verb - To prevent passage through by filling with something.

Usage example: firefighters found the nightclub's doorways jammed with trapped patrons

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Open up is an antonym for jam.

Nearby Word: jamming

Open up verb - Cause to open or to become open.

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Jam is an antonym for open up.

Cite this Source

Open up and Jam. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/jam/open_up

Jam & Open up. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/jam/open_up>.

Open up or Jam. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/jam/open_up.

Google Ngram Viewer shows how "jam" and "open up" have occurred on timeline