she who guides another or others (in selecting the right path or means, in rectifying the conduct, selecting a career, in achieving a goal, etc.); a guide.

showing the right path, direction or course; guiding.

that which guides, directs or instructs towards the right path, course, conduct, etc.

he who guides another or others (in selecting the right path or means, in rectifying the conduct, selecting a career, in achieving a goal, etc.); a guide.