<p><strong>Adjective:</strong></p><ul><li>pertaining to the number 8</li><li>consisting of eight</li><li>proceeding by eight</li><li>octal</li></ul><p><strong>Noun:</strong></p><ul><li>a group of eight; an ogdoad</li><li>a stanza of eight lines</li><li>a number in an octonary system</li></ul>