Your thinking of the spine but the scientific name is vertebrae.
spine?
The name for a group of ships, beginning with an "s", would be squadron.
slim shady
spool
Another name for beach that starts with s is a shore(might be wrong)
Spine
Spinal column
spine?
A snake name starting with the letter "S" could be "Sammy" or "Sylvester".
stevedore
The name for a group of ships, beginning with an "s", would be squadron.
Saturn sazukki
strawberry
soirée
shindig
slim shady
Shikshak