jam session

noun

: an often impromptu performance by a group especially of jazz musicians that is characterized by improvisation

Examples of jam session in a Sentence

Recent Examples on the Web

The two-day event gave attendees a choice of main stage concerts, storytelling, mini-concerts and jam sessions on stages nestled on the north end of the park. — Linda Girardi, Chicago Tribune, 8 Sep. 2026

The house has been the site of jam sessions and musical creation, community festivals and celebrations and ongoing efforts to engage the city's youth in music. — Marissa J. Lang, NPR, 28 Aug. 2026

During his captivity, his siblings organized weekly jam sessions in his honor at Tel Aviv’s Hostages Square. — Bianna Golodryga, CNN Money, 26 Aug. 2026

There was a jam session during cocktail hour, with music stations around the redwoods with instruments for people to pick up and play with each other. — Ashlyn Robinette, PEOPLE, 23 Aug. 2026

Word History

Etymology

jam entry 3

First Known Use

1931, in the meaning defined above

Rhymes for jam session

• accession
• aggression
• compression
• concession
• confession
• depression
• digression
• discretion
• expression
• impression
• obsession
• oppression

Kids Definition

jam session

noun

: an informal performance by a group of musicians (as jazz musicians) who often invite visitors to join in