Contact breaker is an automotive term that is used to describe an electrical switch which is used to interrupt the flow of current in an ignition circuit. This circuit is responsible for generating the spark that ignites the fuel and air mixture that powers the engine. Synonyms for the word contact breaker include ignition points, distributor points, breaker points, and cam points. These terms are all used to describe the same type of electrical switch, which is an essential component of any gasoline-powered engine. While there are many modern alternatives to the contact breaker, including the electronic ignition system, the term remains in use among mechanics and automotive enthusiasts.