Line of bones in the back supporting the body
spine, spinal column, vertebrae, chine.
firmness, fortitude, resolution; see determination 2. See syn. study at fortitude.
"backbone." YourDictionary, n.d. Web. 05 December 2018. <https://thesaurus.yourdictionary.com/backbone>.
backbone. (n.d.). Retrieved December 05th, 2018, from https://thesaurus.yourdictionary.com/backbone
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