A large, closed, four-wheeled carriage, having doors in the sides, and generally a front and back seat inside, each for two persons, and an elevated outside seat in front for the driver.
A first-class passenger car, as distinguished from a drawing-room car, sleeping car, etc. It is sometimes loosely applied to any passenger car.
A vehicle with enclosed passenger accommodations. In the broadest sense of the term, coach can be applied to most recreational vehicles. When used by itself, it usually refers to a motor home, most likely a Class A.