sterilize vs American spelling

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

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

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

sterilize (verb)	American spelling (verb)
make infertile
make free from bacteria