pluralise vs Australian spelling

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

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

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

pluralise (verb)	Australian spelling (verb)
mark with a grammatical morpheme that indicates plural