overgeneralize vs American spelling

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

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

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

overgeneralize (verb)	American spelling (verb)
draw too general a conclusion