高官
Kōkan
Bey
Kettle
kettle
Vizier is a high-ranking government official.
The highest rank in sumo wrestling is 'yokozuna'.
A person working in an office setting may be a secretary. If it's a high-ranking official (Secretary of State), it's usually capitalized.
A knight is a high ranking soldier.
High, as in tall, is "takai."
"Junior high school" (middle school) is 'chuugakkou' in Japanese.
Ambassadeur is a French word. This person is a high ranking diplomat representing their country in another country in an official capacity. They are usually placed in a foreign capital and work as a liaison between the country they are stationed in, and their home country.
The word "cardinal" fits your criteria, as it refers to a high-ranking official in the Catholic Church, often treated with great respect and formality. Additionally, "cardinal" is associated with the color red, as cardinals are traditionally depicted in red robes.
Takai.