[{"Bold_text": "noun", "List Items": ["a respectful or formal term of address used to a man:No, sir.", "(initial capital letter)the distinctive title of a knight or baronet:Sir Walter Scott.", "(initial capital letter)a title of respect for some notable personage of ancient times:Sir Pandarus of Troy.", "a lord or gentleman:noble sirs and ladies.", "an ironic or humorous title of respect:sir critic.", "Archaic.a title of respect used before a noun to designate profession, rank, etc.:sir priest; sir clerk."]}]