Noun | 1. | ![]() Marine Corps, United States Marine Corps, United States Marines, US Marine Corps, USMC - an amphibious division of the United States Navy armed forces, armed services, military, military machine, war machine - the military forces of a nation; "their military is the largest in the region"; "the military machine is the same one we faced in 1991 but now it is weaker" military man, serviceman, man, military personnel - someone who serves in the armed forces; a member of a military force; "two men stood sentry duty" |