<p><strong>Adjective</strong></p><ul><li>next after the seventh</li><li>being one of eight equal parts</li></ul><p><strong>Noun</strong></p><ul><li>an eighth part, especially of one (⅛)</li><li>the eighth member of a series</li><li>Music: octave</li></ul><p><strong>Adverb</strong></p><ul><li>in the eighth place; eighthly</li></ul>