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Synonyms for spine

noun

A spikelike protrusion
thorn, prick, spike, barb, thornlet, spinula, quill, ray, thistle, needle; see also point 2.
A column of vertebrae
spinal column, ridge, backbone, chine, rachis, vertebral process; see also bone, vertebrae.

See spine in Webster's New World Roget's A-Z Thesaurus II

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