There are many synonyms for the term "bound book." Some of the most common include hardcover book, bookbinding, sewn book, and spine book. Other terms that may be used to describe a bound book include tome, volume, codex, manuscript, and diary. Bound books may also be referred to as albums, scrapbooks, or journals depending on their intended purpose. The term "folio" may be used to describe a particularly large bound book, while a "pamphlet" may be used to describe a smaller, less substantial bound document. Overall, many different terms exist to describe bound books, including those that refer to both their physical structure and intended use.