Driv'er, n.
n. 1. One who drives; the person or thing that urges or compels any thing else to move.
Sense 2. The person who drives beasts or a carriage; a coachman; a charioteer, &c.; hence, also, one who runs or regulates the operation of a locomotive.
Sense 3. An overseer of a gang of slaves at their work on a plantation. [U. S.] Whittier.
Sense 4. A substance interposed between the driving instrument and the thing driven; as, a cooper drives hoops by striking upon the driver.
Sense 5. (Mach.) That which communicates motion to something else, especially a wheel that transmits power to another wheel, and the part of a lathe that gives motion to the carrier; the driving-wheel of a locomotive.
Sense 6. (Naut.) The after-sail in a ship or bark, being a fore-and-aft sail attached to a gaff; a spanker. Totten.