lexis

/ˈlɛksɪs/
noun
  1. The total set of words in a language, or the vocabulary of a particular person, group, or subject.
    • Her academic lexis is very advanced for a high school student.
    • The lexis used in legal documents can be hard for non-experts to understand.
    • The lexis of English includes words from many different languages.
What does "lexis" mean? | whatsthatwordmean | whatsthatwordmean