American spelling vs masculinize

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

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

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

American spelling (verb)	masculinize (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