Courage, fortitude, or strength.
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.
Groundlessness; worthlessness; triviality; vanity; frivolity.
The state of being idle; inactivity.
The state of being indolent; indolence.