bone
n. countable A2 Elementary Oxford US //ˈboʊn// UK //bˈəʊn// bone
n. one of the hard, white parts that make up the frame of your body. You have many bones that connect to help you move and stay strong.
n. any of the hard, calcified pieces of connective tissue that form the skeleton of a vertebrate. Often used figuratively to describe the essential core or structure of something.
The doctor checked the broken bone in my arm.
Archaeologists discovered several ancient animal bones buried deep beneath the floor of the cave.
The architect argued that the steel beams formed the bones of the building, providing a structural integrity that allowed for the expansive glass walls.
Usage
Commonly used in the plural when referring to the skeleton; often appears in idioms like 'to have a bone to pick' or 'to the bone'.