<p><strong>Noun</strong></p><ul><li>the upper side</li><li>usually topsides</li><li>the outer surface of a hull above the water</li><li>the most authoritative position or level</li><li>a cut of beef similar to a U.S. rump roast</li><li>the top or outer side of a round of beef; beef from the outer thigh of a butchered cow</li></ul><p><strong>Adjective</strong></p><ul><li>of, relating to, or located on the topside</li><li>of the most authoritative rank</li></ul><p><strong>Adverb</strong></p><ul><li>also topsides</li><li>up on the deck: He left the engine room and went topside</li><li>to, toward, or at the topside</li></ul>