1. to free something that is stuck or blocked

Examples

• I need to unjam the printer before I can print my report.
• The mechanic worked to unjam the stuck gear.
• She managed to unjam the window that had been painted shut.
• The janitor used a plunger to unjam the clogged drain.
• He carefully unjammed the zipper on his jacket.
• The technician was able to unjam the copy machine quickly.