motor (Noun) — Machine that converts other forms of energy into mechanical energy and so imparts motion.
motor (Noun) — A nonspecific agent that imparts motion. ex. "happiness is the aim of all men and the motor of all action"
motor (Verb) — (driving) travel or be transported in a vehicle. ex. "They motored to London for the theatre"
motor (Adjective) — Conveying information to the muscles from the CNS. ex. "motor nerves"
motor (Adjective) — Causing or able to cause motion. ex. "motor energy"