1. devices that block or interfere with electronic signals
Usage: technology
2. tight-fitting swimwear or athletic shorts
Usage: sports; swimming
3. musicians who participate in informal musical sessions
Usage: music; informal

Examples

• The military used signal jammers to block enemy communications.
• Cell phone jammers are illegal in many countries.
• The swimmer wore tight jammers for the competition.
• His new jammers were perfect for the triathlon.
• The jazz club attracted talented jammers every Tuesday night.
• Local jammers gathered to play blues music in the park.
• Radio jammers can interfere with emergency broadcasts.