firetrap vs building

firetrap and building both are nouns.

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

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

firetrap: a building that would be hard to escape from if it were to catch fire
building: a structure that has a roof and walls and stands more or less permanently in one place

Other hypernyms of firetrap include edifice.

firetrap (noun)	building (noun)
a building that would be hard to escape from if it were to catch fire	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