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).

• Francis Gurry is director of WIPO.
• The easiest way for Neera Tanden to win confirmation as Joe Biden’s budget director is for Democrats to take the Senate in January.

A member of a board of directors.

• [...] the confusion between directors who know nothing and managers who know everything [...].

A counselor, confessor, or spiritual guide.

That which directs or orientates something.

• Installed longer flow director; it now just covers the entire diameter of the 6-in. brine return nozzle, and is 4 in. high […]

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.

A component of a Yagi–Uda antenna.