an apparatus consisting of interrelated parts with separate functions, used in the performance of some kind of work: a sewing machine.
a mechanical apparatus or contrivance; mechanism.
Mechanics. a device that transmits or modifies force or motion. Also called simple machine. any of six or more elementary mechanisms, as the lever, wheel and axle, pulley, screw, wedge, and inclined plane. Also called complex machine. a combination of simple machines.
Older Use. an automobile or airplane. a typewriter.