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  • duke
    duke
    noun
    (in Continental Europe) the male ruler of a duchy; the sovereign of a small state.
  • Duke
    Duke
    noun
    Benjamin Newton, 1855–1929, and his brother, James Buchanan, 1856–1925, U.S. industrialists.
Synonyms

duke

1 American  
[dook, dyook] / duk, dyuk /

noun

  1. (in Continental Europe) the male ruler of a duchy; the sovereign of a small state.

  2. a British nobleman holding the highest hereditary title outside the royal family, ranking immediately below a prince and above a marquis; a member of the highest rank of the British peerage.

  3. a nobleman of corresponding rank in certain other countries.

  4. a cultivated hybrid of the sweet and sour cherry.

  5. Slang. dukes, fists; hands.

    Put up your dukes.


verb (used with object)

duked, duking
  1. Slang. to hit or thrash with the fists (sometimes followed byout ): The bully said he was going to duke out anyone who disagreed.

    He duked me because he said I had insulted him.

    The bully said he was going to duke out anyone who disagreed.

idioms

  1. duke it out, to fight, especially with the fists; do battle.

    The adversaries were prepared to duke it out in the alley.

Duke 2 American  
[dook, dyook] / duk, dyuk /

noun

  1. Benjamin Newton, 1855–1929, and his brother, James Buchanan, 1856–1925, U.S. industrialists.

  2. a male given name.


duke British  
/ djuːk /

noun

  1. a nobleman of high rank: in the British Isles standing above the other grades of the nobility

  2. the prince or ruler of a small principality or duchy

"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

Etymology

Origin of duke

First recorded in 1100–50; Middle English duke, duc, late Old English duc, from Old French duc, dus, dux, from Medieval Latin dux “hereditary ruler of a small state,” Latin: “leader”; see dux; duke def. 5 dukes (in the sense “fists”) of unclear derivation and perhaps of distinct origin

Explanation

A duke is a member of a royal or noble group. In some places, dukes rule over certain regions, while in others duke is just an honorary title. In the U.K., a duke inherits his title from his parents. Prince William, for example, is the Duke of Cambridge, while his father Prince Charles is the Duke of Cornwall and Rothesay. The equivalent title for a woman is duchess. Informally, duke has a very different meaning in the U.S. — if you "duke it out," you have a fight, and to "put up your dukes" means to clench your fists and get ready to punch.

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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.

The Telegraph said it was understood the former duke was shaken by the incident and was asked to provide a statement about what happened, as was his personal protection officer.

From BBC • May 7, 2026

“If anyone expected the two of them to duke it out in Wright’s much-maligned rotunda,” Huxtable writes, they’d be shocked to discover the two Franks waltzing harmoniously instead.

From The Wall Street Journal • Mar. 24, 2026

And in a 1778 painting of Gainsborough’s wife, Margaret, who was the illegitimate daughter of a duke, he poses her classically in costly black lace.

From The Wall Street Journal • Mar. 4, 2026

Rep. Wesley Hunt is likely headed to a runoff, while Democrats duke out their own primary.

From The Wall Street Journal • Mar. 4, 2026

But if Nehemia left before she was supposed to, the duke would know who had told her, and inform his father.

From "Throne of Glass" by Sarah J. Maas

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