centralise vs Australian spelling

centralise is not a noun while Australian spelling is a noun.

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

centralise (noun)	Australian spelling (noun)
	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')

centralise (verb)	Australian spelling (verb)
make central