American spelling vs ardor

American spelling and ardor both are nouns.

Word	Noun	Adjective	Verb	Adverb
American spelling	Yes	No	No	No
ardor	Yes	No	No	No

American spelling (noun)	ardor (noun)
English orthography used in the United States (characterized by 'analyze', 'center', 'usable')	intense feeling of love
	a feeling of strong eagerness (usually in favor of a person or cause)
	feelings of great warmth and intensity