telco building vs edifice

telco building and edifice both are nouns.

Word	Noun	Adjective	Verb	Adverb
telco building	Yes	No	No	No
edifice	Yes	No	No	No

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

telco building: a building that houses telecommunications equipment
edifice: a structure that has a roof and walls and stands more or less permanently in one place

Other hypernyms of telco building include building.

telco building (noun)	edifice (noun)
a building that houses telecommunications equipment	a structure that has a roof and walls and stands more or less permanently in one place