brothel vs building

brothel and building both are nouns.

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

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

brothel: a building where prostitutes are available
building: a structure that has a roof and walls and stands more or less permanently in one place

Other hypernyms of brothel include edifice.

brothel (noun)	building (noun)
a building where prostitutes are available	the act of constructing something
	the commercial activity involved in repairing old structures or constructing new ones
	a structure that has a roof and walls and stands more or less permanently in one place
	the occupants of a building