<p><strong>Noun</strong></p><ul><li>the highest or loftiest point or part of anything on a slope; apex; summit.</li><li>the highest point of attainment or aspiration; the summit of one's ambition.</li><li>the highest state or degree.</li><li>the highest level of diplomatic or other governmental officials: a meeting at the summit.</li><li>the act or practice of holding a summit meeting, especially to conduct diplomatic negotiations.</li><li>the art or technique of conducting summit meetings.</li><li>summit meetings collectively.</li></ul><p><strong>Adjective</strong></p><ul><li>pertaining to, situated at, or forming the top; highest; uppermost; upper.</li><li>highest in degree; greatest.</li><li>foremost, chief, or principal.</li></ul><p><strong>Verb (used with object)</strong></p><ul><li>to furnish with an upper part or side; put a top on.</li><li>to reach the highest or best part of.</li><li>to rise above.</li><li>to exceed in height, amount, number, etc.</li><li>to remove the top of; crop; prune.</li></ul><p><strong>Verb (used without object)</strong></p><ul><li>to take part in a summit meeting.</li><li>to reach a summit.</li></ul>