euthanize vs American spelling

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

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

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

euthanize (verb)	American spelling (verb)
intentionally cause the painless death of a person or animal