An ambassador is a high-ranking DIPLOMAT who represents a country in another country. A DEPUTY is a person appointed to assist an ambassador in their duties. A CONSUL is a diplomatic official appointed by a government to protect its citizens abroad and promote trade. A NEGOTIATOR is someone who works to resolve disputes between two or more parties. An AGENT is a person authorized to act on behalf of another. A DELEGATE is a person sent to represent a group at a conference or other event. A MESSENGER is a person who carries a message from one person to another. A REPRESENTATIVE is a person who speaks or acts on behalf of another. A MINISTER is a government official responsible for a particular area of government policy. A DIPLOMAT is a person appointed by a government to conduct negotiations and maintain relations with other countries. An EMISSARY is a person sent on a mission to represent the interests of another. A LEGATE is a diplomatic REPRESENTATIVE sent by a government on a special mission. An ENVOY is a MESSENGER sent on a diplomatic mission. A MADAM is a woman in charge of a business, especially a brothel.