<p><strong>Noun</strong></p><ul><li>Any large, brown, cold-water seaweed of the family Laminariaceae</li><li>Used as food</li><li>Used in various manufacturing processes</li><li>A bed or mass of such seaweeds</li><li>The ash of these seaweeds</li></ul><p><strong>Verb</strong></p><ul><li>To burn these seaweeds for their ash</li></ul>