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
But in a world where technology supremacy is national security, Warner says more of our intelligence efforts need to reflect this shift.
—Krysta Escobar, CNBC, 6 Dec. 2025
With their first matchup against Green Bay on Sunday afternoon, Moore said he much more prefers playing the Packers in December than in January to maintain the Bears' NFC North supremacy heading into the stretch run for the playoffs.
—Matt Zahn, CBS News, 5 Dec. 2025
An apocalyptic impulse to destroy the federal bureaucracy and reestablish patriarchal, Christian supremacy has been blamed for fueling the rise of the MAGA movement.
—Linda Kinstler, The Atlantic, 1 Dec. 2025
If high-running emotions in what some considered a West Coast supremacy game played a role in any of the discipline penalties, the Trojans aren’t saying.
—Haley Sawyer, Oc Register, 25 Nov. 2025
See All Example Sentences for supremacy
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Krysta Escobar, CNBC, 6 Dec. 2025
With their first matchup against Green Bay on Sunday afternoon, Moore said he much more prefers playing the Packers in December than in January to maintain the Bears' NFC North supremacy heading into the stretch run for the playoffs.
—Matt Zahn, CBS News, 5 Dec. 2025
An apocalyptic impulse to destroy the federal bureaucracy and reestablish patriarchal, Christian supremacy has been blamed for fueling the rise of the MAGA movement.
—Linda Kinstler, The Atlantic, 1 Dec. 2025
If high-running emotions in what some considered a West Coast supremacy game played a role in any of the discipline penalties, the Trojans aren’t saying.
—Haley Sawyer, Oc Register, 25 Nov. 2025
See All Example Sentences for supremacy
Cite this Entry
“Supremacy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/supremacy. Accessed 8 Dec. 2025.
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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