grandness vs magnificence

grandness and magnificence both are nouns.

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

As nouns, grandness and magnificence are synonyms defined as:

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

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

As nouns, grandness and magnificence are synonyms defined as:

Other synonyms of grandness include impressiveness, richness.

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