2. Definition
Expose means to uncover or lay something bare, or to discover something in a way that others know what it is. Expository is derived from exposition, which is a noun of ‘expose.’ An expository essay is a genre of writing which tends to explain, illustrate, clarify, or explicate something in a way that it becomes clear for readers. Therefore, it could be an investigation, evaluation, or even argumentation about an idea for clarification.