Definition of Americanism in English:

Americanism

noun

  • 1A word, expression, or other feature that is characteristic of American English:

    ‘the term is an Americanism dating back to the late nineteenth century’
    1. 1.1 A custom, quality, or institution characteristic of the United States:
      ‘Americanisms such as the barbecue and the swimming pool’
  • 2[mass noun] Attachment or allegiance to the traditions, institutions, and ideals of the United States:

    ‘Americans in Europe have almost all preserved their Americanism’

Pronunciation

Americanism

/əˈmɛrɪkənɪz(ə)m/