<p><strong>Noun</strong></p><ul><li>An unnaturally or artificially high-pitched voice or register, especially in a man.</li><li>A person, especially a man, who sings with such a voice.</li></ul><p><strong>Adjective</strong></p><ul><li>Noting or having the quality and compass of such a voice.</li></ul><p><strong>Adverb</strong></p><ul><li>In a falsetto.</li></ul>