building vs painting

building and painting both are nouns.

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

building (noun)	painting (noun)
the act of constructing something	creating a picture with paints
the commercial activity involved in repairing old structures or constructing new ones	the occupation of a house painter
a structure that has a roof and walls and stands more or less permanently in one place	the act of applying paint to a surface
the occupants of a building	graphic art consisting of an artistic composition made by applying paints to a surface