backbone

1. (noun) a computer network that connects other computer networks
Related Words: computer network

2. (noun) (informal) fortitude; "he didn't have the guts to try it"
Synonyms: grit, gumption, guts, sand
Related Words: fortitude

3. (noun) a central cohesive source of support and stability: "faith is his anchor"; "he is the linchpin of this firm"
Synonyms: anchor, linchpin, lynchpin, mainstay
Related Words: support

4. (noun) the series of vertebrae forming the axis of the skeleton and protecting the spinal cord; "the fall broke his back"
Synonyms: back, spinal column, spine, vertebral column
Related Words: chine, notochord, skeletal structure



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