Dignitary and Supremo

Dignitary noun - An important or influential (and often overbearing) person.

Supremo and dignitary are semantically related. in heavyweight topic. In some cases you can use "Supremo" instead a noun "Dignitary". informal substitute

Supremo noun - The most important person in an organization.

Dignitary and supremo are semantically related. Sometimes you can replace term "Dignitary" with "Supremo", this nouns are similar.