Available Definitions:
1) n. - One employed to steer a vessel; a helmsman; a steersman.
2) n. - Specifically, a person duly qualified, and licensed by authority, to conduct vessels into and out of a port, or in certain waters, for a fixed rate of fees.
3) n. - Figuratively: A guide; a director of another through a difficult or unknown course.
4) n. - An instrument for detecting the compass error.
5) n. - The cowcatcher of a locomotive.
6) v. t. - To direct the course of, as of a ship, where navigation is dangerous.
7) v. t. - Figuratively: To guide, as through dangers or difficulties.