Generator may refer to:Signal generator, electronic devices that generate repeating or non-repeating electronic signals Electric generator, a device that converts mechanical energy to electrical energy. Tidal stream generator, a machine that extracts energy from moving masses of water Generator, an element in an abstract circuit providing a source of electricity Engine-generator, an electric generator with its own engine Wearable generator, a hypothetical generator that can be worn on the human body Gas generator a device, often similar to a solid rocket or a liquid rocket that burns to produce large volumes of relatively cool gas Motor–generator, a device for converting electrical power to another form Atmospheric water generator, a device capable of extracting water from air