rationalize vs American spelling

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

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

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

rationalize (verb)	American spelling (verb)
weed out unwanted or unnecessary things
remove irrational quantities from
think rationally; employ logic or reason
defend, explain, clear away, or make excuses for by reasoning
structure and run according to rational or scientific principles in order to achieve desired results