Definitions for



Overview of noun backbone

The noun backbone has 5 senses? (first 2 from tagged texts)
1. (1) anchor, mainstay, keystone, backbone, linchpin, lynchpin

(a central cohesive source of support and stability; "faith is his anchor"; "the keystone of campaign reform was the ban on soft money"; "he is the linchpin of this firm")

2. (1) backbone, grit, guts, moxie, sand, gumption

(fortitude and determination; "he didn't have the guts to try it")

3. spinal column, vertebral column, spine, backbone, back, rachis

(the series of vertebrae forming the axis of the skeleton and protecting the spinal cord; "the fall broke his back")

4. 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; "the title and author were printed on the spine of the book")

5. backbone

(the part of a network that connects other networks together; "the backbone is the part of a communication network that carries the heaviest traffic")

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