A pilot light is a small flame that is used to ignite a larger flame, such as in a gas stove or furnace. The term 'pilot light, e.g.' can be solved by two crossword solutions: IGNITER (7 letters) and GASJET (6 letters). An IGNITER is a device that produces a spark or flame to ignite a fuel, while a gasjet is a small opening through which gas is released. Both of these terms refer to components of a pilot light system.