1. (noun) spinal column, vertebral column, spine, backbone, back, rachis
the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
Synonyms: dorsum, cover, sticker, spikelet, mainstay, backrest, lynchpin, binding, grit, prickle, book binding, pricker, spine, sand, thorn, spinal column, keystone, spur, linchpin, back, backbone, rear, acantha, gumption, anchor, rachis, moxie, guts, vertebral column
2. (noun) spur, spine, acantha
any sharply pointed projection
Synonyms: gad, prod, sticker, spikelet, goading, urging, prickle, pricker, spine, thorn, spurring, spinal column, spur, back, branch line, backbone, acantha, spur track, rachis, prodding, goad, vertebral column
3. (noun) spine, thorn, prickle, pricker, sticker, spikelet
a small sharp-pointed tip resembling a spike on a stem or leaf
Synonyms: irritant, sticker, spikelet, stumper, prickle, pricker, bradawl, paster, thorn, gummed label, spinal column, spur, back, poser, backbone, acantha, spine, toughie, rachis, dagger, vertebral column
4. (noun) spine, backbone
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
Synonyms: sticker, spikelet, mainstay, lynchpin, spine, prickle, pricker, grit, sand, thorn, spinal column, keystone, spur, linchpin, back, backbone, acantha, gumption, anchor, rachis, moxie, guts, vertebral column
5. (noun) spine
a sharp rigid animal process or appendage; as a porcupine quill or a ridge on a bone or a ray of a fish fin
Synonyms: back, sticker, spikelet, acantha, backbone, spinal column, vertebral column, prickle, thorn, pricker, spur, rachis
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Synonyms for spine 
