[{"Bold_text": "noun", "List Items": ["a person who has risen suddenly from a humble position to wealth, power, or a position of consequence.", "a presumptuous and objectionable person who has so risen; parvenu."]}, {"Bold_text": "adjective", "List Items": ["being, resembling, or characteristic of an upstart."]}, {"Bold_text": "verb (used without object)", "List Items": ["to spring into existence or into view.", "to start ; spring up, as to one's feet."]}, {"Bold_text": "verb (used with object)", "List Items": ["to cause to start ."]}]