favor vs American spelling

favor and American spelling both are nouns.

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

favor (noun)	American spelling (noun)
an act of gracious kindness	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')
souvenir consisting of a small gift given to a guest at a party
an advantage to the benefit of someone or something
an inclination to approve
a feeling of favorable regard