miniaturisation vs Australian spelling

miniaturisation and Australian spelling both are nouns.

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

miniaturisation (noun)	Australian spelling (noun)
act of making on a greatly reduced scale	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')