leveling vs building

leveling and building both are nouns.

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

As nouns, building is a hypernym of leveling; that is, building is a word with a broader meaning than leveling:

leveling: changing the ground level to a smooth horizontal or gently sloping surface
building: the act of constructing something

Other hypernyms of leveling include construction.

leveling (noun)	building (noun)
the act of making equal or uniform	the act of constructing something
complete destruction of a building	the commercial activity involved in repairing old structures or constructing new ones
changing the ground level to a smooth horizontal or gently sloping surface	a structure that has a roof and walls and stands more or less permanently in one place
	the occupants of a building