Meaning of "backbone" : Online English Dictionary : Word Search by Wordhut.com

Meaning of backbone

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

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

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

4. (n) 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"

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