itemise vs Australian spelling

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

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

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

itemise (verb)	Australian spelling (verb)
specify individually
place on a list of items