<p><strong>Noun</strong></p><ul><li>a comparatively small and powerful engine, especially an internal-combustion engine in an automobile, motorboat, or the like.</li><li>any self-powered vehicle.</li><li>a person or thing that imparts motion, especially a contrivance, as a steam engine, that receives and modifies energy from some natural source in order to utilize it in driving machinery.</li><li>Also called electric motor.</li><li>a machine that converts electrical energy into mechanical energy, as an induction motor.</li><li>motors, stocks or bonds in automobile companies.</li></ul><p><strong>Adjective</strong></p><ul><li>pertaining to or operated by a motor.</li><li>of, for, by, or pertaining to motor vehicles: motor freight.</li><li>designed or for automobiles, their drivers, or their passengers: The hotel has a motor lobby in its parking garage for picking up and discharging passengers.</li><li>causing or producing motion.</li><li>conveying an impulse that results or tends to result in motion, as a nerve.</li><li>Also of, relating to, or involving muscular movement: a motor response; motor images.</li></ul><p><strong>Verb (used without object)</strong></p><ul><li>to ride or travel in an automobile; drive: They motored up the coast.</li></ul><p><strong>Verb (used with object)</strong></p><ul><li>Chiefly British: to drive or transport by car: He motored his son to school.</li></ul>