(1):
(n.) Any machine that transforms mechanical into electrical energy; a dynamo.
(2):
(n.) The principal sound or sounds by which others are produced; the fundamental note or root of the common chord; - called also generating tone.
(3):
(n.) An apparatus in which vapor or gas is formed from a liquid or solid by means of heat or chemical process, as a steam boiler, gas retort, or vessel for generating carbonic acid gas, etc.
(4):
(n.) One who, or that which, generates, begets, causes, or produces.