ruggedize vs American spelling

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

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

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

ruggedize (verb)	American spelling (verb)
produce in a version designed to withstand rough usage