Backbone
(n.) The column of bones in the back which sustains and gives firmness to the frame; the spine; the vertebral or spinal column.
(n.) Anything like , or serving the purpose of, a backbone.
(n.) Firmness; moral principle; steadfastness.
Similar Words:
Backband Backbite Backbiter Backbiting Backboard Backbond Backbone Backboned