#ignition_lock__lock  a restraint incorporated into the ignition switch to prevent the use of a vehicle by persons who do not have the key
  supertype:  restraint.device__constraint  a device that stops something from moving; "the car did not have proper restraints fitted"
  part of:  ignition_switch  switch that operates a solenoid that closes a circuit to operate the starter
     part of:  ignition_system__ignition  the mechanism that ignites the fuel in an internal-combustion engine
        part of:  electrical_system__electrical_part  equipment in a motor vehicle that provides electricity to start the engine and ignite the fuel and operate the lights and windshield wiper and heater and air conditioner and radio
           part of:  motor_vehicle__motorvehicle__automotive_vehicle  a self-propelled wheeled vehicle that does not run on rails

No statement uses or specializes ignition_lock; click here to add one.