American spelling vs polarize

American spelling is a noun but polarize is not a noun.

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

American spelling (noun)	polarize (noun)
English orthography used in the United States (characterized by 'analyze', 'center', 'usable')

American spelling (verb)	polarize (verb)
	become polarized in a conflict or contrasting situation
	cause to concentrate about two conflicting or contrasting positions
	cause to vibrate in a definite pattern