exteriorisation vs Australian spelling

exteriorisation and Australian spelling both are nouns.

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

exteriorisation (noun)	Australian spelling (noun)
embodying in an outward form	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')