[{"Bold_text": "noun", "List Items": ["contemplation of the past; a survey of past time, events, etc."]}, {"Bold_text": "verb (used without object)", "List Items": ["to look back in thought; refer back (often followed byto):to retrospect to a period in one's youth."]}, {"Bold_text": "verb (used with object)", "List Items": ["to look back upon; contemplate retrospectively ."]}]