Definition of Americanism noun from the Oxford Advanced American Dictionary

     

    Americanism

     noun
    noun
    NAmE//əˈmɛrɪkəˌnɪzəm//
     
     
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  1. 1[countable] a word, phrase, or spelling that is typical of American English, used in another variety of English
  2. 2[uncountable] the essential quality of being American
See the Oxford Advanced Learner's Dictionary entry: Americanism