Courage, "having a spine" (see for example the word spineless)

Courage summary and related information.

Spine (book), the bound edge of a book

Spinal Tap (band), a semi-fictional heavy metal band

Spinal cord, the bundle of nerve cells and nerve fibers within the vertebral column

Spinal (Killer Instinct), a fictional character from the video game Killer Instinct

Lumbar puncture, a colloquial term for which is a spinal tap

The Spine, a 2004 They Might Be Giants album, including the songs "Spine" and "Spines"

Spinal anaesthesia, a type of regional anaesthetic

Spine (botany), needle-like structures in plants

Spine (Journal), a bi-weekly peer review journal of spine surgery

Spine (zoology), needle-like structures in animals

backbone, Vertebral column in anatomy (protects the spinal cord)

Dendritic spine, a specialized postsynaptic protrusion in dendrites implicated in learning and memory through synaptic plasticity

Spine a demon in Blood Beast of the Demonata saga