opium den vs edifice

opium den and edifice both are nouns.

Word	Noun	Adjective	Verb	Adverb
opium den	Yes	No	No	No
edifice	Yes	No	No	No

As nouns, edifice is a hypernym of opium den; that is, edifice is a word with a broader meaning than opium den:

opium den: a building where opium is sold and used
edifice: a structure that has a roof and walls and stands more or less permanently in one place

Other hypernyms of opium den include building.

opium den (noun)	edifice (noun)
a building where opium is sold and used	a structure that has a roof and walls and stands more or less permanently in one place