noun

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

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  • ‘the term is an Americanism dating back to the late nineteenth century’

  1. 1.1A custom, quality, or institution characteristic of the United States.
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     • ‘Americanisms such as the barbecue and the swimming pool’
• 2mass noun Attachment or allegiance to the traditions, institutions, and ideals of the United States.

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  • ‘Americans in Europe have almost all preserved their Americanism’