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
Lawmakers continually warn China’s efforts are threatening to eclipse the United States’ technological supremacy in space.
—
Jackie Wattles,
CNN Money,
30 June 2026
Long story short, the new Free tent jumps right into the same minimal weight lane as other those other new ultralight freestanding tents, ready to battle it out for backcountry supremacy.
—
New Atlas,
28 June 2026
In addition to the WBO and WBA titles, supremacy at 154 pounds, which could lead to a unification fight with Sebastian Fundora or Josh Kelly and a possible spot in the pound-for-pound rankings.
—
Brian Mazique,
Forbes.com,
27 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
See All Example Sentences for supremacy
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Jackie Wattles,
CNN Money,
30 June 2026
Long story short, the new Free tent jumps right into the same minimal weight lane as other those other new ultralight freestanding tents, ready to battle it out for backcountry supremacy.
—
New Atlas,
28 June 2026
In addition to the WBO and WBA titles, supremacy at 154 pounds, which could lead to a unification fight with Sebastian Fundora or Josh Kelly and a possible spot in the pound-for-pound rankings.
—
Brian Mazique,
Forbes.com,
27 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
See All Example Sentences for supremacy
Cite this Entry
“Supremacy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/supremacy. Accessed 7 Jul. 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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