Main Entry: ex·po·si·tion

Pronunciation: \ˌek-spə-ˈzi-shən\

Function: noun

Date: 14th century

1 : a setting forth of the meaning or purpose (as of a writing)
2 a : discourse or an example of it designed to convey information or explain what is difficult to understand b (1) : the first part of a musical composition in sonata form in which the thematic material of the movement is presented (2) : the opening section of a fugue
3 : a public exhibition or show

— ex·po·si·tion·al \-ˈzish-nəl, -ˈzi-shə-n^əl\ adjective