[{"Bold_text": "verb (used without object)", "List Items": ["to bungle or blunder awkwardly; muddle:He somehow bumbled through two years of college.", "to stumble or stagger.", "to speak in a low, stuttering, halting manner; mumble."]}, {"Bold_text": "verb (used with object)", "List Items": ["to do (something) clumsily; botch."]}, {"Bold_text": "noun", "List Items": ["an awkward blunder."]}, {"Bold_text": "verb (used without object)", "List Items": ["to make a buzzing, humming sound, as a bee."]}]