Australian spelling vs reorganisation

Australian spelling and reorganisation both are nouns.

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

Australian spelling (noun)	reorganisation (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	the imposition of a new organization; organizing differently (often involving extensive and drastic changes)