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Synonyms

supremacy

American  
[suh-prem-uh-see, soo-] / səˈprɛm ə si, sʊ- /

noun

  1. the state of being supreme.

  2. supreme authority or power.


supremacy British  
/ sʊˈprɛməsɪ, sjʊ- /

noun

  1. supreme power; authority

  2. the quality or condition of being supreme

"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 supremacy

First recorded in 1540–50; supreme + -acy

Explanation

Supremacy is the state of having the ultimate authority. A ruling king has supremacy over his kingdom. When one group dominates another, it has supremacy. One country's army might have military supremacy over another, or your favorite baseball team might gain supremacy in the third game of the World Series, meaning it has power over the other team in the series. Supremacy comes from the Latin word supremus, which means highest.

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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.

Haaland and Gabriel have been central figures as their clubs battle for domestic supremacy, creating a rivalry that regularly boils over into animosity.

From BBC • Jul. 5, 2026

It was the struggle for supremacy at sea that remains, as Nathaniel Philbrick writes, “the center of the story.”

From The Wall Street Journal • Jun. 26, 2026

Investors can win most of the battle by simply understanding the two roads to an AI-fueled economy: one is through technological supremacy, the other through mass deployment.

From MarketWatch • Jun. 22, 2026

And I think there is real danger in only ruling against him in cases that genuinely threaten judicial supremacy.

From Slate • Jun. 1, 2026

Between 1929 and 1939, the world’s great powers were in a race for air supremacy.

From "A Thousand Sisters" by Elizabeth Wein

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