<p><strong>Adjective</strong></p><ul><li>belonging or pertaining to the common people.</li><li>of, relating to, or belonging to the ancient Roman plebs.</li><li>common, commonplace, or vulgar: a plebeian joke.</li></ul><p><strong>Noun</strong></p><ul><li>a member of the common people.</li><li>a member of the ancient Roman plebs.</li></ul>