Back and Backbone

Back noun - The series of vertebrae forming the axis of the skeleton and protecting the spinal cord.

Backbone is a synonym for back in spine topic. In some cases you can use "Backbone" instead the word "Back" as a noun or an adjective.

Nearby Words: backward, backing, backed, backside, backwards

Backbone noun - A column of bones supporting the trunk of a vertebrate animal.

Back is a synonym for backbone in spinal column topic. You can use "Back" instead the word "Backbone" as a noun or an adjective.

Nearby Word: backboned