director

One who directs; the person in charge of managing a department or directorate (e.g., director of engineering), project, or production (as in a show or film, e.g., film director).

A counselor, confessor, or spiritual guide.

That which directs or orientates something.

A device that displays graphical information concerning the targets of a weapons system in real time.

The common axis of symmetry of the molecules of a liquid crystal.