exposition
n. C / Un. a clear and detailed explanation of an idea or theory. It can also refer to a large public show where businesses or countries display their products and achievements.
n. a comprehensive description and explanation of an idea or theory; alternatively, a large-scale public exhibition of commercial or industrial products. In a narrative context, refers to the insertion of background information within a story.
The book provides a clear exposition of the new economic theory.
The first chapter is dedicated to the exposition of the characters' histories before the main plot begins.
The international exposition showcased the latest technological breakthroughs, drawing millions of visitors eager to witness the future of renewable energy and sustainable design.
From Middle English exposicioun, from Old French esposicion, from Latin expositiō, from expōnere (“to put forth”). The sense meaning "exhibition" is a later semantic loan from French exposition.
Uncountable when referring to the act of explaining; countable when referring to a specific essay, speech, or public exhibition.