Australian spelling vs realise

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

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

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

Australian spelling (verb)	realise (verb)
	perceive (an idea or situation) mentally
	be fully aware or cognizant of
	make real or concrete; give reality or substance to
	expand or complete (a part in a piece of baroque music) by supplying the harmonies indicated in the figured bass
	convert into cash; of goods and property
	earn on some commercial or business transaction; earn as salary or wages