COMMANDER-IN-CHIEF

commander-in-chief. 1. One who holds supreme or highest command of armed forces. [Cases: Armed Services 1, 4. C.J.S. Armed Services §§ 2–4, 11–12, 14, 16–19, 37.] 2. (cap.) The title of the U.S. President when acting as the constitutionally designated leader of the nation’s military. U.S. Const. art. II, § 2.