The meaning of CHAPTER is a main division of a book. How to use chapter in a sentence.

chapter noun [C] (BOOK PART) Add to word list any of the separate parts into which a book or other piece of text is divided, usually numbered or given a title

CHAPTER definition: a main division of a book, treatise, or the like, usually bearing a number or title. See examples of chapter used in a sentence.

A chapter in someone's life or in history is a period of time during which a major event or series of related events takes place.

Chapter the body or community of an organized branch of a society or church, monastic or religious order, or of any order of knights; a unit that is a sequential part of a series; used figuratively.

Feb 23, 2026 · From Middle English chapitre, from Old French chapitre, from Latin capitulum (“a chapter of a book, in Medieval Latin also a synod or council”), diminutive of caput (“a head”); see capital, …

Definition of chapter noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.