Marine Corps

American  

noun

1. a branch of the U.S. Armed Forces trained for land, sea, and air combat, typically for land combat in conjunction with an amphibious or airborne landing, and whose commandant is responsible to the secretary of the navy.

---

Etymology

Origin of Marine Corps

An Americanism dating back to 1790–1800

Example Sentences

Matt served multiple tours in Iraq and Afghanistan as an infantry squad leader and gunnery sergeant in the Marine Corps.

From Slate • Apr. 1, 2026

“The first of two U.S. Marine Corps units has arrived in the region,” wrote Vertical Research Partners analyst Rob Stallard on Monday, adding that Iran says it is ready to respond to a ground assault.

From Barron's • Mar. 30, 2026

But they include stepped-up identification checks at entry gates and random vehicle inspections, according to Marine Corps Base Camp Lejeune in North Carolina.

From Los Angeles Times • Mar. 2, 2026

Under the new construct, the Marine Corps Medium Landing Ship will be based on the design of Damen Naval’s LST 100.

From The Wall Street Journal • Feb. 18, 2026

In his room, Ben packed his gym shoes and trunks into a blue zippered bag that had the Marine Corps seal stamped in white on the outside.

From "The Great Santini" by Pat Conroy