1. a system of electrical wires in a building, vehicle, or device
2. the process or work of installing electrical wires

Examples

• The old house needs new wiring before we can move in.
• An electrician checked the wiring in the kitchen.
• The car’s wiring was damaged in the accident.
• He specializes in commercial wiring projects.
• The wiring in this building meets all safety codes.
• Faulty wiring can cause electrical fires.
• The computer’s internal wiring is very complex.