Australian spelling vs compartmentalisation

Australian spelling and compartmentalisation both are nouns.

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

Australian spelling (noun)	compartmentalisation (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	the act of distributing things into classes or categories of the same type
	a mild state of dissociation