- spineA series of bones situated at the back from the head to the pelvis of a human, or from the head to the tail of an animal, enclosing the spinal cord and providing support for the thorax and abdomen.
- spinaA spine; the backbone.
- spinneyA small copse or wood, especially one planted as a shelter for game birds.
- spinifexAny of numerous species of grass in genus Spinifex, growing in sand dunes.
- spinuleA minute spine or thorn.