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English definition of “alliance”

alliance

noun [C/U]  /əˈlɑɪ·əns/ us  
politics & government a group of countries, political parties, or people who work together because of shared interests or aims, or the act of forming such a group: [C] Switzerland does not belong to any military alliance. [U] Alliance against our common enemy is our only hope for survival.
(Definition of alliance from the Cambridge Academic Content Dictionary © Cambridge University Press)
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