magniloquence vs grandiosity

magniloquence and grandiosity both are nouns.

Word	Noun	Adjective	Verb	Adverb
magniloquence	Yes	No	No	No
grandiosity	Yes	No	No	No

As nouns, magniloquence and grandiosity are synonyms defined as:

magniloquence and grandiosity: high-flown style; excessive use of verbal ornamentation

Other synonyms of magniloquence include grandiloquence, ornateness, rhetoric.

magniloquence (noun)	grandiosity (noun)
high-flown style; excessive use of verbal ornamentation	high-flown style; excessive use of verbal ornamentation