expansiveness vs magnificence

expansiveness and magnificence both are nouns.

Word	Noun	Adjective	Verb	Adverb
expansiveness	Yes	No	No	No
magnificence	Yes	No	No	No

As nouns, magnificence is a hypernym of expansiveness; that is, magnificence is a word with a broader meaning than expansiveness:

expansiveness: a quality characterized by magnificence of scale or the tendency to expand
magnificence: splendid or imposing in size or appearance

Other hypernyms of expansiveness include grandness, impressiveness, richness.

expansiveness (noun)	magnificence (noun)
a friendly open trait of a talkative person	the quality of being magnificent or splendid or grand
a quality characterized by magnificence of scale or the tendency to expand	splendid or imposing in size or appearance