masculinize vs American spelling

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

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

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

masculinize (verb)	American spelling (verb)
produce virilism in or cause to assume masculine characteristics, as through a hormonal imbalance or hormone therapy
give a masculine appearance or character to