atomisation vs Australian spelling

atomisation and Australian spelling both are nouns.

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

atomisation (noun)	Australian spelling (noun)
separating something into fine particles	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')
annihilation by reducing something to atoms