skeleton

nouns

something reduced to its minimal form
"the battalion was a mere skeleton of its former self"; "the bare skeleton of a novel"
is a type of (narrower)
the smallest possible quantity
a scandal that is kept secret
"there must be a skeleton somewhere in that family's closet"
the hard structure (bones and cartilages) that provides a frame for the body of an animal
is derived from
the internal supporting structure that gives an artifact its shape
"the building has a steel skeleton"