building vs wall

building and wall both are nouns.

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

building (noun)	wall (noun)
the act of constructing something	an architectural partition with a height and length greater than its thickness; used to divide or enclose an area or to support another structure
the commercial activity involved in repairing old structures or constructing new ones	an embankment built around a space for defensive purposes
a structure that has a roof and walls and stands more or less permanently in one place	a masonry fence (as around an estate or garden)
the occupants of a building	a layer of material that encloses space
	(anatomy) a layer (a lining or membrane) that encloses a structure
	anything that suggests a wall in structure or function or effect
	a vertical (or almost vertical) smooth rock face (as of a cave or mountain)
	a difficult or awkward situation

building (verb)	wall (verb)
	surround with a wall in order to fortify