<p><strong>Verb (used without object):</strong></p><ul><li>to utter a deep guttural sound of anger or hostility: The dog growled at the mail carrier.</li><li>to murmur or complain angrily; grumble.</li><li>to rumble: The thunder growled.</li><li>Jazz: to use flutter-tonguing in playing a wind instrument.</li></ul><p><strong>Verb (used with object):</strong></p><ul><li>to express by growling.</li></ul><p><strong>Noun:</strong></p><ul><li>the act or sound of growling.</li><li>Jazz: the technique of flutter-tonguing.</li></ul>