<p><strong>Adjective</strong></p><ul><li>low in pitch; of the lowest pitch or range: a bass voice; a bass instrument.</li><li>of or relating to the lowest part in harmonic music.</li></ul><p><strong>Noun</strong></p><ul><li>the bass part.</li><li>a bass voice, singer, or instrument.</li><li>double bass.</li></ul>