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
Hong Kong — China has clinched the top spot on a list of the world’s most powerful supercomputers, overtaking the United States for the first time since 2017 with a model powered by homegrown chips amid an intense race for tech supremacy between the two superpowers.
—
John Liu,
CNN Money,
24 June 2026
Colonists had to swear the oath of supremacy to the English monarch, which meant accepting the Church of England.
—
Peter C. Mancall,
The Conversation,
24 June 2026
However, by the 21st century, pillboxes were regarded as relics of the past with very little relevance in an age where air supremacy, lightning movement, maneuverability, and sudden strikes were the norm.
—
David Szondy
june 23,
New Atlas,
23 June 2026
Ohanian’s goal for ONIT isn’t to challenge Fanatics for trading card supremacy.
—
Larry Holder,
New York Times,
18 June 2026
See All Example Sentences for supremacy
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John Liu,
CNN Money,
24 June 2026
Colonists had to swear the oath of supremacy to the English monarch, which meant accepting the Church of England.
—
Peter C. Mancall,
The Conversation,
24 June 2026
However, by the 21st century, pillboxes were regarded as relics of the past with very little relevance in an age where air supremacy, lightning movement, maneuverability, and sudden strikes were the norm.
—
David Szondy
june 23,
New Atlas,
23 June 2026
Ohanian’s goal for ONIT isn’t to challenge Fanatics for trading card supremacy.
—
Larry Holder,
New York Times,
18 June 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 29 Jun. 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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