[{"Bold_text": "noun", "List Items": ["the head or leader of an organized body of people; the person highest in authority:the chief of police.", "the head or ruler of a tribe or clan:an Indian chief.", "Chief,U.S. Army.a title of some advisers to the Chief of Staff, who do not, in most instances, command the troop units of their arms or services:Chief of Engineers;Chief Signal Officer.", "Informal: Sometimes Offensive.boss or leader:We'll have to talk to the chief about this.", "Heraldry.the upper area of an escutcheon.an ordinary this area.", "the upper area of an escutcheon.", "an ordinary this area."]}, {"Bold_text": "adjective", "List Items": ["highest in rank or authority:the chief priest;the chief administrator.Antonyms: subordinate", "most important; principal :his chief merit;the chief difficulty.Synonyms: paramount , prime , leading , foremost , cardinal"]}, {"Bold_text": "adverb", "List Items": ["Archaic.chiefly; principally."]}]