linearize vs American spelling

linearize is not a noun while American spelling is a noun.

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

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

linearize (verb)	American spelling (verb)
make linear or get into a linear form