<p><strong>Noun</strong></p><ul><li>A person who makes or repairs casks, barrels, etc.</li></ul><p><strong>Verb</strong></p><ul><li>(Used with object) To make or repair (casks, barrels, etc.).</li><li>To furnish or fix (usually followed by up).</li><li>(Used without object) To work as a cooper.</li></ul>