American spelling vs sensitize

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

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

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

American spelling (verb)	sensitize (verb)
	make sensitive or aware
	make (a material) sensitive to light, often of a particular colour, by coating it with a photographic emulsion
	make sensitive to a drug or allergen
	cause to sense; make sensitive