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Definitions

alliance

[uh-lahy-uhns] / əˈlaɪ əns /
NOUN
friendly association, agreement
Synonyms
STRONG
accord affiliation affinity betrothal bond coalition coherence collaboration collusion combination communion compact concord concurrence confederacy confederation congruity conjunction connection consanguinity cooperation engagement entente federation fraternization friendship interrelation kinship league marriage matrimony membership mutuality pact participation partnership relation support tie treaty union
Antonyms
STRONG
antagonism detachment disagreement disconnection discord disunity division divorce hatred opposition separation
WEAK
disunion estrangement hostility rebellion war

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“This type of alliance is very rare and it greatly enhances the bargaining power of all three unions,” said Dan Schnur, who teaches political communications at UC Berkeley and USC.

From Los Angeles Times • Apr. 9, 2026

"Iran appears to be distinguishing between a country's alliance and its active participation in the conflict."

From BBC • Apr. 6, 2026

There is no natural or preordained alliance between these groups, and at crucial moments their interests and agendas may differ.

From Salon • Apr. 6, 2026

For Europe, too, ending the alliance would be costly.

From The Wall Street Journal • Apr. 4, 2026

France still did not want an open alliance with the United States.

From "George Washington, Spymaster" by Thomas B. Allen