building vs nook

building and nook both are nouns.

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

building (noun)	nook (noun)
the act of constructing something	an interior angle formed by two meeting walls
the commercial activity involved in repairing old structures or constructing new ones	a sheltered and secluded place
a structure that has a roof and walls and stands more or less permanently in one place
the occupants of a building