Australian spelling vs ruggedisation

Australian spelling and ruggedisation both are nouns.

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

Australian spelling (noun)	ruggedisation (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	the act of making a piece of equipment rugged (strengthening to resist wear or abuse)