<p><strong>Interjection:</strong></p><ul><li>(used to express or indicate a heavy blow or a loud, explosive noise.)</li></ul><p><strong>Noun:</strong></p><ul><li>A heavy blow or a loud, explosive noise.</li><li>The power of exciting.</li></ul><p><strong>Adjective:</strong></p><ul><li>Exciting and appealing.</li></ul>