building vs skeleton

building and skeleton both are nouns.

Word	Noun	Adjective	Verb	Adverb
building	Yes	No	No	No
skeleton	Yes	No	No	No

building (noun)	skeleton (noun)
the act of constructing something	the internal supporting structure that gives an artifact its shape
the commercial activity involved in repairing old structures or constructing new ones	the hard structure (bones and cartilages) that provides a frame for the body of an animal
a structure that has a roof and walls and stands more or less permanently in one place	a scandal that is kept secret
the occupants of a building	something reduced to its minimal form