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
The battle was fought during the Napoleonic Wars, as Britain attacked Denmark to break a neutral alliance with other European powers that threatened British naval supremacy.
—Andrea Margolis, FOXNews.com, 29 Apr. 2026
Legal experts say those protections are significant but not absolute and that the supremacy clause does not provide blanket immunity.
—Shelly Bradbury, Denver Post, 23 Apr. 2026
Legal experts say those protections are significant but not absolute and that the supremacy clause does not provide blanket immunity.
—ABC News, 22 Apr. 2026
The supremacy of filmmaking craft on display here is what makes Janus’ restoration so worthy of celebration.
—Jim Hemphill, IndieWire, 22 Apr. 2026
See All Example Sentences for supremacy
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Andrea Margolis, FOXNews.com, 29 Apr. 2026
Legal experts say those protections are significant but not absolute and that the supremacy clause does not provide blanket immunity.
—Shelly Bradbury, Denver Post, 23 Apr. 2026
Legal experts say those protections are significant but not absolute and that the supremacy clause does not provide blanket immunity.
—ABC News, 22 Apr. 2026
The supremacy of filmmaking craft on display here is what makes Janus’ restoration so worthy of celebration.
—Jim Hemphill, IndieWire, 22 Apr. 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 1 May. 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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