regularisation vs Australian spelling

regularisation and Australian spelling both are nouns.

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

regularisation (noun)	Australian spelling (noun)
the act of bringing to uniformity; making regular	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')
the condition of having been made regular (or more regular)