#horn_button  a button that you press to activate the horn of an automobile
  supertype:  push_button__push__button  an electrical switch operated by pressing a button; "the elevator was operated by push buttons"; "the push beside the bed operated a buzzer at the desk"
  part of:  automobile_horn__car_horn__carhorn__motor_horn__motorhorn__horn__hooter  a device on an automobile for making a warning noise
     part of:  car__auto__automobile__machine__motorcar  4-wheeled motor vehicle; usually propelled by an internal combustion engine; "he needs a car to get to work"

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