Mogul

Part of speech: noun (n.)

1. A person of the Mongolian race.

2. A heavy locomotive for freight traffic, having three pairs of connected driving wheels and a two-wheeled truck. Great, or Grand, Mogul, the sovereign of the empire founded in Hindostan by the Mongols under Baber in the sixteenth century. Hence, a very important personage; a lord; -- sometimes only mogul. Dryden.