Definitions:

1. the part of a book's cover that encloses the inner side of the book's pages and that faces outward when the book is shelved noun
   • the title and author were printed on the spine of the book

Synonyms:

• acantha
• back
• backbone
• pricker
• prickle
• spikelet
• spur
• sticker
• thorn

NearBy Words:

• spine-tipped
• spinel
• spineless
• spinelessness
• spinet