westernise vs Australian spelling

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

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

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

westernise (verb)	Australian spelling (verb)
make western in character