Australian spelling vs finalise

Australian spelling is a noun but finalise is not a noun.

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

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

Australian spelling (verb)	finalise (verb)
	make final; put the last touches on; put into final form