Definition of troika noun from the Oxford Advanced Learner's Dictionary

 

troika

 noun
noun
BrE BrE//ˈtrɔɪkə//
 
; NAmE NAmE//ˈtrɔɪkə//
 
(formal)
 
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a group of three politicians, organizations or countries working together Word OriginRussian, from troe ‘set of three’.
See the Oxford Advanced American Dictionary entry: troika