supremacy
noun
su·prem·a·cy
sə-ˈpre-mə-sē 
sü-
also -ˈprē-
plural supremacies
1
: the quality or state of being supreme
especially
: a position of unquestioned authority, dominance, or influence
military/naval supremacy
In the 20th century, two completely different models of how to run an economy battled for supremacy. —
Bill McKibben
Bill McKibben Natal's well-watered valleys … became by the end of the 18th century the site of a contest for supremacy … —Noel Mostert
Noel Mostert Every high school boasts its elite squad of lookers: sparkling teeth, merciless anatomy, sunny filaments of hair … . Between classes, they parade down the halls, trooping their supremacies like Clydesdales. —Richard Lacayo
Richard Lacayo 2
: ultimate authority or power
belief in the supremacy of God
Synonyms of supremacy
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
Oman has close relations to Tehran, only two Gulf states recognize Israel, and competition between GCC members over supremacy on certain issues is fierce.
—Hadley Gamble, semafor.com, 19 Mar. 2026
Forget scientific exploration under the seas; this is a story about the half-shark son of Marko named Sharko, dolphin supremacy, and a look at Jonathan Swift’s A Modest Proposal that makes the cannibalistic horror of the 300-year-old satire feel brand new.
—Eric Vilas-Boas, Vulture, 18 Mar. 2026
But there is some old history from when the two clubs were competing with Detroit for NHL supremacy at the turn of the century.
—Corey Masisak, Denver Post, 18 Mar. 2026
Conference supremacy The SEC has the most teams in the Top 25 with eight.
—Dallas Morning News, 16 Mar. 2026
See All Example Sentences for supremacy
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Hadley Gamble, semafor.com, 19 Mar. 2026
Forget scientific exploration under the seas; this is a story about the half-shark son of Marko named Sharko, dolphin supremacy, and a look at Jonathan Swift’s A Modest Proposal that makes the cannibalistic horror of the 300-year-old satire feel brand new.
—Eric Vilas-Boas, Vulture, 18 Mar. 2026
But there is some old history from when the two clubs were competing with Detroit for NHL supremacy at the turn of the century.
—Corey Masisak, Denver Post, 18 Mar. 2026
Conference supremacy The SEC has the most teams in the Top 25 with eight.
—Dallas Morning News, 16 Mar. 2026
See All Example Sentences for supremacy
Cite this Entry
“Supremacy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/supremacy. Accessed 23 Mar. 2026.
Copy CitationKids Definition
supremacy
noun
su·prem·a·cy
sə-ˈprem-ə-sē
plural supremacies
1
: the quality or state of being supreme
2
: supreme authority or power
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