GRAND DUKE


Meaning of GRAND DUKE in English

noun

1.

(in some parts of Europe, especially in the past), a male ruler of a small independent state :

The Grand Duke of Tuscany

2.

(in Russia in the past), a son of the tsar

—compare archduke

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.