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grand duke

American  

noun

  1. the sovereign of a territory called a grand duchy, ranking next below a king.

  2. a son of a czar or of a czar's son.


grand duke British  

noun

  1. a prince or nobleman who rules a territory, state, or principality

  2. a son or a male descendant in the male line of a Russian tsar

  3. a medieval Russian prince who ruled over other princes

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of grand duke

First recorded in 1685–95

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It belongs at present to the Grand duke of Sachsen-Weimar-Eisenach.

From Fairy Tales from the German Forests by Arndt, Margaret