American English

Definition of oligarchy noun from the Oxford Advanced American Dictionary

     

    oligarchy

     noun
    noun
    NAmE//ˈɑləˌɡɑrki//
     
    (pl. oligarchies)
     
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  1. 1[uncountable] a form of government in which only a small group of people hold all the power
  2. 2[countable] the people who hold power in an oligarchy
  3. 3[countable] a country governed by an oligarchy
See the Oxford Advanced Learner's Dictionary entry: oligarchy