noun, masculine
- in plural back (the rear of body)
- also, in plural lower back, lumbar
- loin, tenderloin (any of several cuts of meat)
- fillet (of fish) (a strip or compact piece of meat)
- in plural rib (cut of meat enclosing one or more rib bones)
- spine (the narrow, bound edge of a book)
- crease (of a hide, fabric, etc)
- blunt edge (of a blade)
- Latin America, colloquial flesh
- Paraguay, Rioplatense, colloquial an extraordinarily magnificent or ideal human body
- Canary Islands a long hill or mountain