One who forces something into motion.

发动器；发动者。

One who directs the motions of persons or things, as a chauffeur, a coachman, an overseer, etc.

司机；驾驶员；马车夫；监工。

A part of a machine which imparts motion to another part.

【机】传动器。

Part of a machine which receives power directly, as the driving wheel of a locomotive.

【机】传动轮。

Club for driving the ball from the tee.

【体】(高尔夫球)发球杆。