magnificence vs grandness

magnificence and grandness both are nouns.

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

As nouns, magnificence and grandness are synonyms defined as:

magnificence and grandness: the quality of being magnificent or splendid or grand

Other synonyms of magnificence include brilliance, grandeur, splendor, splendour.

As nouns, magnificence and grandness are synonyms defined as:

Other synonyms of magnificence include impressiveness, richness.

magnificence (noun)	grandness (noun)
the quality of being magnificent or splendid or grand	the quality of being magnificent or splendid or grand
splendid or imposing in size or appearance	unusual largeness in size or extent or number
	splendid or imposing in size or appearance
	a prominent status