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English definition of “federation”

federation

noun     /ˌfed.ərˈeɪ.ʃən/ US  /-əˈreɪ-/
C1 [C] a group of organizations , countries , regions , etc. that have joined together to form a larger organization or government : The United States is a federation of 50 individual states .International politics and governmentGroups of people [U] the act of forming a federation: The federation of the six original Australian states took place in 1901. He's against European federation.International politics and government
(Definition of federation noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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