noun🔗ShareA quiet or unintelligible vocalization; a low tone of voice."All I could hear was a mumble from the next room."soundlanguagecommunicationChat with AIVocabulary GamePractice Reading
verb🔗ShareTo speak unintelligibly or inaudibly; to fail to articulate."Please try not to mumble so I can hear you better."languagecommunicationsoundactionChat with AIVocabulary GamePractice Reading
verb🔗ShareTo chew something gently with closed lips."The baby likes to mumble the soft banana between her gums. "foodactionChat with AIVocabulary GamePractice Reading
