spine
//spaɪn//
Noun
spineSingular
spinesPlural
1
The series of vertebrae extending from the skull to the pelvis; the backbone.
She injured her spine in a car accident.
2
A sharp, pointed projection on a plant or animal, such as a thorn or quill.
The cactus has sharp spines that protect it from animals.
3
The part of a book's cover that encloses the bound edge of the pages, typically displaying the title and author.
The book's title is printed on the spine.
4
Strength of character; courage or determination.
She showed real spine by standing up to her critics.