Definition of populism noun from the Oxford Advanced American Dictionary

 

populism

 noun
noun
NAmE//ˈpɑpyəˌlɪzəm//
 
[uncountable]
 
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a type of politics that claims to represent the opinions and wishes of ordinary people
NAmE//ˈpɑpyəlɪst//
 
noun a party of populists
 
adjective [usually before noun] a populist leader
See the Oxford Advanced Learner's Dictionary entry: populism