1. the inner lining of a book cover, especially decorative endpapers
Usage: bookbinding

Examples

• The rare book featured elaborate silk doublures with gold tooling.
• Collectors prize first editions with original decorative doublures.
• The bookbinder carefully attached the leather doublures to the cover.
• These doublures show the craftsmanship of 18th-century binding.
• The library’s special collection includes books with marbled doublures.