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
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
Stargate, the $500 billion effort to secure American AI supremacy for perpetuity backed by OpenAI’s Sam Altman and SoftBank founder Masa Son, among others, will require a gargantuan amount of energy to power it.
—David Jeans, Forbes, 5 Feb. 2025
McConnell insists that revisionist powers can be contained only through American military supremacy.
—Reid Smith, Foreign Affairs, 3 Feb. 2025
In an Ed Burns Coffee Pot Tournament semifinal doubleheader, the Arlington and Belmont boys hockey teams each pulled out thrillers to meet in the Doherty division’s final next Sunday at Tsongas Center (1 p.m.) for a battle of public-school supremacy.
—Tom Mulherin, Boston Herald, 3 Feb. 2025
As debates over technological supremacy continue, decisions made in such high-level discussions could have far-reaching consequences, affecting trade relations, economic growth, and innovation.
—Quartz Intelligence Newsroom, Quartz, 31 Jan. 2025
See all Example Sentences for supremacy 
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David Jeans, Forbes, 5 Feb. 2025
McConnell insists that revisionist powers can be contained only through American military supremacy.
—Reid Smith, Foreign Affairs, 3 Feb. 2025
In an Ed Burns Coffee Pot Tournament semifinal doubleheader, the Arlington and Belmont boys hockey teams each pulled out thrillers to meet in the Doherty division’s final next Sunday at Tsongas Center (1 p.m.) for a battle of public-school supremacy.
—Tom Mulherin, Boston Herald, 3 Feb. 2025
As debates over technological supremacy continue, decisions made in such high-level discussions could have far-reaching consequences, affecting trade relations, economic growth, and innovation.
—Quartz Intelligence Newsroom, Quartz, 31 Jan. 2025
See all Example Sentences for supremacy
Dictionary Entries Near supremacy
Cite this Entry
“Supremacy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/supremacy. Accessed 20 Feb. 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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