état-major

Etymology
From.

Noun

 * 1)  general staff, high command, headquarters group of officers in charge of an army under the control of the commander-in-chief
 * 2)  headquarters military installation from which troops are commanded and orders are issued
 * 3)  administrative staff body of staff that administers a political party
 * 4)  senior management group of people in charge of a corporation
 * 5)  any administrative body aimed at aiding a professional or academic in their work