noun /dɪˈrɛktə,daɪˈrɛktə,dɪˈɹɛktɚ,daɪˈɹɛktɚ/
a) 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).
b) A device that displays graphical information concerning the targets of a weapons system in real time.
Wikipedia foundation.