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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.

The alliance plans to use more uncrewed surface vessels in the operation this year, Abrahamson said.

From The Wall Street Journal • Apr. 9, 2026

Lajos struggles to keep hold of the estate after the dissolution of the Austro-Hungarian Empire in 1918 and during the interwar years as Hungary slides toward its alliance with Nazi Germany.

From The Wall Street Journal • Apr. 8, 2026

The victory sent scores of Gen Z politicians to parliament and made former rapper Shah, who made an alliance with the RSP, the leader of Nepal.

From BBC • Apr. 5, 2026

Kristina Kausch, a researcher at the German Marshall Fund, said it would be an exaggeration to speak of the end of the alliance.

From Barron's • Apr. 3, 2026

“Soon after we arrived in the Underland we humans formed a special alliance with the bats,” said Solovet.

From "Gregor the Overlander" by Suzanne Collins