A pilot light is a small FLAME that is used to ignite a larger FLAME, usually in gas-powered appliances. The term 'pilot light' is made up of four words: POLARIS (7 letters), FLAME (5 letters), BURNER (6 letters), and GASJET (6 letters). POLARIS refers to the North Star, which is used as a navigational aid for pilots. FLAME is the small FLAME that is used to ignite the larger FLAME. BURNER is the device that holds the FLAME and GASJET is the nozzle that releases the gas to be ignited.