| 1. | a main division of a book, treatise, or the like, usually bearing a number or title. |
| 2. | a branch, usually restricted to a given locality, of a society, organization, fraternity, etc.: the Connecticut chapter of the American Red Cross. |
| 3. | an important portion or division of anything: The atomic bomb opened a new chapter in history. |
| 4. | Ecclesiastical.
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| 5. | any general assembly. |
| 6. | Liturgy. a short scriptural quotation read at various parts of the office, as after the last psalm in the service of lauds, prime, tierce, etc. |
| 7. | Horology. any of the marks or numerals designating the hours on a dial. |
| 8. | to divide into or arrange in chapters. |
