backbone
1. The column of bones in the back which sustains and gives firmness to the frame; the spine; the vertebral or spinal column. 2. Anything like , or serving the purpose of, a backbone. The lofty mountains on the north side compose the granitic axis, or backbone of the country. Darwin. We have now come to the backbone of our subject. Earle. 3. Firmness; moral principle; steadfastness. Shelley's thought never had any backbone. Shairp. To the backbone, through and through; thoroughly; entirely. "Staunch to the backbone." Lord Lytton.
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Solve "BACKBONE"Source: Webster's Revised Unabridged Dictionary (1913), United States public domain. See methodology for full licensing detail. Word validity for game play may differ from any official game dictionary.