diplomat
The Spanish word 'diplomático' translates to 'diplomat' in English. A diplomat is a person appointed by a government to conduct diplomatic negotiations and maintain political, economic, and social relations with another country. Diplomats are representatives of their own government to the government of another country or to an international organization. In Spanish, the same role is described by the word 'diplomático'.
His brother is a high-ranking diplomat.
This sentence refers to someone's brother who has a high-ranking position such as an ambassador or consul in diplomacy.
As a good diplomat, he always maintains calm in the face of international conflicts.
Here, the term 'diplomat' is used to describe someone who remains calm when dealing with conflicts on an international scale, a characteristic expected of a good diplomat.
The task of a diplomat is to represent the interests of his country abroad.
This sentence is defining the responsibilities of a diplomat, specifically indicating that they represent their country's interests abroad.