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
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
The weekly climb to high school cross country supremacy continues Friday and Saturday with the Orange County Championships.
—Steve Fryer, Oc Register, 16 Oct. 2025
Still, their progress, made easier by supremacy in the air, appeared inexorable.
—Literary Hub, 14 Oct. 2025
Since a Supreme Court decision in 1943, the supremacy of the FCC in broadcast regulation has been unquestioned.
—Michael J. Socolow, The Conversation, 14 Oct. 2025
In a battle for NFC supremacy, Tampa Bay exerted its dominance while the Niners’ season — which looked so promising last Thursday — appears to be in total flux following the likely season-ending injury to Fred Warner and San Francisco’s floundering performance.
—Dieter Kurtenbach, Mercury News, 13 Oct. 2025
See All Example Sentences for supremacy
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Steve Fryer, Oc Register, 16 Oct. 2025
Still, their progress, made easier by supremacy in the air, appeared inexorable.
—Literary Hub, 14 Oct. 2025
Since a Supreme Court decision in 1943, the supremacy of the FCC in broadcast regulation has been unquestioned.
—Michael J. Socolow, The Conversation, 14 Oct. 2025
In a battle for NFC supremacy, Tampa Bay exerted its dominance while the Niners’ season — which looked so promising last Thursday — appears to be in total flux following the likely season-ending injury to Fred Warner and San Francisco’s floundering performance.
—Dieter Kurtenbach, Mercury News, 13 Oct. 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 22 Oct. 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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