vernacularism

/vərˈnækjələrɪzəm/
noun
  1. A word, phrase, or expression that is used in everyday speech by ordinary people in a particular region or group, rather than in formal or standard language.
    • "Y'all" is a common vernacularism in the southern United States.
    • The author's use of local vernacularisms makes the dialogue feel authentic.
    • Learning a few vernacularisms can help you sound more natural when speaking a new language.
  2. The quality or style of using everyday, informal language in speech or writing.
    • The novel's vernacularism reflects the author's desire to capture real conversations.
    • The poet's vernacularism gives her work a down-to-earth feel.
    • His speech was marked by a charming vernacularism that connected with the audience.
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