- (n.) An injury caused by jamming.
- (v.t.) To press into a close or tight position; to crowd; to squeeze; to wedge in.
- (v.t.) To crush or bruise; as, to jam a finger in the crack of a door.
- (n.) See Jamb.
- (n.) A preserve of fruit boiled with sugar and water; as, raspberry jam; currant jam; grape jam.
- (v.t.) To bring (a vessel) so close to the wind that half her upper sails are laid aback.
- (n.) A mass of people or objects crowded together; also, the pressure from a crowd; a crush; as, a jam in a street; a jam of logs in a river.
- (n.) A kind of frock for children.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). jam. Retrieved September 22, 2026, from http://smartdefine.org/jam/definitions/2024273 |
| Chicago | Webster's. 2011. "jam" http://smartdefine.org/jam/definitions/2024273 (accessed September 22, 2026). |
| Harvard | Webster's 2011, jam, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/jam/definitions/2024273>. |
| MLA | Webster's. "jam" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/jam/definitions/2024273> |