<p><strong>Verb (used without object)</strong></p><ul><li>to burst forth</li><li>to break out of a pent-up state, usually in a sudden and violent manner</li><li>to break out in a skin rash</li><li>(of teeth) to grow through surrounding hard and soft tissues and become visible in the mouth</li></ul><p><strong>Synonyms</strong></p><ul><li>vent (of a volcano, geyser, etc.)</li></ul><p><strong>Verb (used with object)</strong></p><ul><li>to release violently; burst forth with</li></ul><p><strong>Synonyms</strong></p><ul><li>vent (of a volcano, geyser, etc.)</li><li>to eject (matter)</li></ul>