Australian spelling vs reharmonisation

Australian spelling and reharmonisation both are nouns.

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

Australian spelling (noun)	reharmonisation (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	a piece of music whose original harmony has been revised