1. devices that allow different pieces of equipment to be connected or used together
2. people who modify or adjust something to suit new conditions or uses

Examples

• I need power adapters for my European trip.
• The USB adapters allow older devices to connect to modern computers.
• Audio adapters convert headphone jacks to different sizes.
• The film adapters worked hard to bring the novel to the screen.
• Network adapters enable computers to connect to the internet.
• Travel adapters are essential for international business trips.
• The adapters modified the original design for local markets.