What does "driver" mean?

Driver: The person who drives beasts or a carriage; a coachman; a charioteer, etc.; hence, also, one who controls the movements of a locomotive.

Additional senses

  1. 2.An overseer of a gang of slaves or gang of convicts at their work.
  2. 3.(Mach.) A part that transmits motion to another part by contact with it, or through an intermediate relatively movable part, as a gear which drives another, or a lever which moves another through a link, etc. Specifically: (a) The driving wheel of a locomotive. (b) An attachment to a lathe, spindle, or face plate to turn a carrier. (c) A crossbar on a grinding mill spindle to drive the upper stone.
  3. 4.(Naut.) The after sail in a ship or bark, being a fore-and-aft sail attached to a gaff; a spanker. Totten. Driver ant (Zoöl.), a species of African stinging ant; one of the visiting ants (Anomma arcens); -- so called because they move about in vast armies, and drive away or devour all insects and other small animals.

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