expository
UK: ɪkˈspɒzɪtəri | US: ɪkˈspɑːzɪtɔːri
adj. intended to explain or describe something in detail
adj. relating to or characterized by exposition
The word "expository" derives from Latin exponere (to set forth, explain), combining ex- (out) and ponere (to place). The suffix -itory forms adjectives indicating a function or purpose. Over time, the term evolved to describe writing or speech that systematically explains or clarifies a subject. The morphemes reflect the act of "placing out" ideas logically—a vivid metaphor for clear communication.
The textbook's expository style made complex concepts easy to understand.
Her essay was purely expository, devoid of personal opinions.
The documentary used expository narration to present historical facts.
Teachers often employ expository techniques when introducing new topics.
The manual's expository diagrams helped users assemble the product quickly.