splendor vs grandeur

splendor and grandeur both are nouns.

Word	Noun	Adjective	Verb	Adverb
splendor	Yes	No	No	No
grandeur	Yes	No	No	No

As nouns, splendor and grandeur are synonyms defined as:

splendor and grandeur: the quality of being magnificent or splendid or grand

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

splendor (noun)	grandeur (noun)
a quality that outshines the usual	the quality of being magnificent or splendid or grand
the quality of being magnificent or splendid or grand	the quality of elevation of mind and exaltation of character or ideals or conduct