su·prem·a·cy | \sə-ˈpre-mə-sē, sü- also -ˈprē-\
plural supremacies

Definition of supremacy 

: the quality or state of being supreme also : supreme authority or power

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Examples of supremacy in a Sentence

the Roman empire had supremacy over the entire Mediterranean world the supremacy of cashmere among wools accounts for its high price

Recent Examples on the Web

Britons created the brass diving-helmet in the 1820s, and vied with the French for underwater supremacy for the next century. The Economist, "A cave rescue in Thailand shows Britain’s skill at spelunking," 11 July 2018 The Supreme Court fight has thrown another wild card into the scramble for congressional supremacy. Carl Hulse, New York Times, "Who Might the Court Fight Help in the Midterms? Democrats. And Republicans.," 10 July 2018 Even liberal Protestant churches supported white supremacy. Eugene Scott, Washington Post, "Most Americans do not support businesses citing religion to deny service to LGBT people," 4 June 2018 Even liberal Protestant churches supported white supremacy. The Washington Post,, "An Alabama-born preacher helped revive the KKK in 1915," 10 Apr. 2018 White supremacy is erupting, in part, because of the U.S. president’s words and actions — his seal of approval., "We should think deeply about the Alison Ettel viral video — and why it matters," 28 June 2018 White supremacy is the belief that white people are smarter, more ethical and more capable than any other race of people (especially black folks) and should therefore control most of society. Jason Johnson, The Root, "I Finally See It: Democrats Don’t Hate Trump As Much as They Love White Supremacy," 21 June 2018 China claims most of the South China Sea and has challenged traditional U.S. naval supremacy in the western Pacific. Christopher Bodeen, Fox News, "Recent developments surrounding the South China Sea," 12 Mar. 2018 Moreover, China’s intensive state support for its technological expansion reinforces its challenge not only to U.S. dominance in the world’s cutting-edge technology but also the supremacy of the U.S. economic model. Jue Wang, Time, "Xi Jinping and Donald Trump Need to Sound Tough on Trade. But Here’s Where They Could Compromise," 24 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'supremacy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of supremacy

1537, in the meaning defined above

History and Etymology for supremacy

supreme + -acy (as in primacy)

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Statistics for supremacy

Last Updated

19 Sep 2018

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Time Traveler for supremacy

The first known use of supremacy was in 1537

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More Definitions for supremacy



English Language Learners Definition of supremacy

: the quality or state of having more power, authority, or status than anyone else : the state of being supreme


su·prem·a·cy | \su̇-ˈpre-mə-sē \
plural supremacies

Kids Definition of supremacy

: the highest rank, power, or authority

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Comments on supremacy

What made you want to look up supremacy? Please tell us where you read or heard it (including the quote, if possible).


lying above or upon

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