residence vs mcmansion

residence and mcmansion both are nouns.

Word	Noun	Adjective	Verb	Adverb
residence	Yes	No	No	No
mcmansion	Yes	No	No	No

As nouns, mcmansion is a hyponym of residence; that is, mcmansion is a word with a more specific, narrower meaning than residence:

Other hyponyms of residence include manor, manor house, castle, palace, stately home.

residence (noun)	mcmansion (noun)
the act of dwelling in a place	a generic, mass-produced luxury home
the official house or establishment of an important person (as a sovereign or president)
a large and imposing house
any address at which you dwell more than temporarily