1. the act of blocking or obstructing something so it cannot move or function properly
2. informal musical improvisation, especially when musicians play together spontaneously
Usage: informal
3. deliberate interference with radio or electronic signals
Usage: technical

1. present participle of jam: to block or obstruct something
2. present participle of jam: to play music informally with others
Usage: informal

Examples

• The printer stopped working due to paper jamming in the feed tray.
• Traffic jamming occurred during rush hour on the highway.
• The musicians spent the evening jamming in the garage.
• Radio jamming prevented clear communication during the storm.
• The door kept jamming because of the warped frame.
• They were jamming to classic rock songs all night.
• Signal jamming made it impossible to use GPS navigation.
• The copy machine is jamming again with thick paper.