<p><strong>Adjective</strong></p><ul><li>of or relating to the sea; existing in or produced by the sea: marine vegetation.</li><li>pertaining to navigation or shipping; nautical; naval; maritime.</li><li>serving on shipboard, as soldiers.</li><li>of or belonging to the marines.</li><li>adapted for use at sea: a marine barometer.</li></ul><p><strong>Noun</strong></p><ul><li>a member of the U.S. Marine Corps.</li><li>one of a class of naval troops serving both on shipboard and on land.</li><li>seagoing ships collectively, especially with reference to nationality or class; shipping in general.</li><li>a picture with a marine subject; seascape.</li><li>naval affairs, or the department of a government, as in France, having to do with such affairs.</li></ul>