noun#9,974 by frequency
backbone
/ˈbækˌbəʊn/
The series of vertebrae, separated by disks, that encloses and protects the spinal cord, and runs down the middle of the back in vertebrate animals; Any fundamental support, structure, or infrastructure; Courage, fortitude, or strength
- plural
- backbones
Meanings
- 1
The series of vertebrae, separated by disks, that encloses and protects the spinal cord, and runs down the middle of the back in vertebrate animals
- 2
Any fundamental support, structure, or infrastructure
- 3
Courage, fortitude, or strength