[{"Bold_text": "noun", "List Items": ["a diplomatic official of the highest rank, sent by one sovereign or state to another as its resident representativeambas?sador?extraor?dinary?and?plenipoten?tiary.", "a diplomatic official of the highest rank sent by a government to represent it on a temporary mission, as for negotiating a treaty.", "a diplomatic official serving as permanent head of a country's mission to the United Nations or some other international organization.", "an authorized messenger or representative.:Amb., amb."]}]