Exposition

The act of exposing or laying open; a setting out or displaying to public view.

The act of expounding or of laying open the sense or meaning of an author, or a passage; explanation; interpretation; the sense put upon a passage; a law, or the like, by an interpreter; hence, a work containing explanations or interpretations; a commentary.

Situation or position with reference to direction of view or accessibility to influence of sun, wind, etc.; exposure; as, an easterly exposition; an exposition to the sun.

A public exhibition or show, as of industrial and artistic productions; as, the Paris Exposition of 1878.

an account that sets forth the meaning or intent of a writing or discourse; "we would have understood the play better if there had been some initial exposition of the background"

a systematic interpretation or explanation (usually written) of a specific topic