Australian spelling vs ruggedise

Australian spelling is a noun but ruggedise is not a noun.

Word	Noun	Adjective	Verb	Adverb
Australian spelling	Yes	No	No	No
ruggedise	No	No	Yes	No

Australian spelling (noun)	ruggedise (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')

Australian spelling (verb)	ruggedise (verb)
	produce in a version designed to withstand rough usage