Australian spelling vs symbolise

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

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

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

Australian spelling (verb)	symbolise (verb)
	express indirectly by an image, form, or model; be a symbol
	represent or identify by using a symbol; use symbols