grandeur vs splendor

grandeur and splendor both are nouns.

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

As nouns, grandeur and splendor are synonyms defined as:

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

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

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