Consisting of, or resembling, a skeleton; consisting merely of the framework or outlines; having only certain leading features of anything; as, a skeleton sermon; a skeleton crystal.(adjective)
source: webster1913
noun (n)
something reduced to its minimal form(noun.quantity)
Example: The battalion was a mere skeleton of its former self.
The bare skeleton of a novel.
source: wordnet30
a scandal that is kept secret(noun.event)
Example: There must be a skeleton somewhere in that family's closet.