analog vs American spelling

analog and American spelling both are nouns.

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

analog (noun)	American spelling (noun)
something having the property of being analogous to something else	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')

analog (adjective)	American spelling (adjective)
of a circuit or device having an output that is proportional to the input