1. a device that blocks or interferes with radio, cellular, or electronic signals
Usage: technology
2. a person who plays music in an informal session with others
Usage: music; informal
3. something that causes a blockage or obstruction
Usage: informal

Examples

• The school installed a cell phone jammer to prevent cheating during exams.
• Airport security detected an illegal signal jammer in his luggage.
• She’s a talented guitar jammer who loves playing with different bands.
• The jazz club hosts weekly sessions for local jammers.
• A paper jammer in the printer caused delays in the office.
• The traffic jammer made everyone late for the meeting.