Commandant

Noun

 * 1) A commanding officer, usually of a specific force or division.

Thesaurus
aide, aide-de-camp, brigadier, brigadier general, bull, captain, castellan, chatelain, chatelaine, chicken colonel, chief of staff, colonel, commander, commander in chief, commanding officer, commissioned officer, company officer, custodian, director, exec, executive, executive officer, field marshal, field officer, first lieutenant, five-star general, four-star general, gaoler, general, general officer, generalissimo, governor, guard, guardian, intendant, jailer, jemadar, junior officer, keeper, lieutenant, lieutenant colonel, lieutenant general, major, major general, manager, marechal, marshal, master, officer, one-star general, orderly officer, principal keeper, prison guard, risaldar, ruler, screw, senior officer, shavetail, sirdar, staff officer, subahdar, subaltern, sublieutenant, the Old Man, the brass, three-star general, top brass, turnkey, two-star general, warden, warder