Navy vs. Marines

(countable) A country's entire sea force, including ships and personnel.

(countable) A governmental department in charge of a country's sea force.

A dark blue colour, usually called navy blue.

Having the dark blue colour of navy blue.

Belonging to the navy; typical of the navy.

A fleet of ships; an assemblage of merchantmen, or so many as sail in company.

The whole of the war vessels belonging to a nation or ruler, considered collectively; as, the navy of Italy.

The officers and men attached to the war vessels of a nation; as, he belongs to the navy.

same as navy blue.

Having a color of navy blue.

an organization of military naval forces

a dark shade of blue

A navy, naval force, or maritime force is the branch of a nation's armed forces principally designated for naval and amphibious warfare; namely, lake-borne, riverine, littoral, or ocean-borne combat operations and related functions. It includes anything conducted by surface ships, amphibious ships, submarines, and seaborne aviation, as well as ancillary support, communications, training, and other fields.

Marines, or naval infantry, are typically a military force trained to operate in littoral zones in support of naval operations. Historically, tasks undertaken by marines have included helping maintain discipline and order aboard the ship (reflecting the pressed nature of the ships' company and the risk of mutiny), the boarding of vessels during combat or capture of prize ships, and providing manpower for raiding ashore in support of the naval objectives.