furor vs American spelling

furor and American spelling both are nouns.

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

furor (noun)	American spelling (noun)
a sudden outburst (as of protest)	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')
an interest followed with exaggerated zeal