vocabulary an area that has one or more features in common.

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area

Lit

To understand the term "vocabulary" in the context you've mentioned, let's break it down:

Vocabulary refers to a collection of words or terms that a person knows and understands. It represents the language skills and knowledge a person possesses.

An area encompasses a specific region, domain, or field. It can be used metaphorically to describe a conceptual space or a defined context.

Having one or more features in common implies that there are shared characteristics, qualities, or attributes that exist within a given area or domain.

In summary, when we say "vocabulary is an area that has one or more features in common," we mean that vocabulary refers to a defined set of words and terms within a specific field or context, where these words share common characteristics or are related in some way.