Australian spelling vs signalise

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

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

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

Australian spelling (verb)	signalise (verb)
	make conspicuous or noteworthy
	communicate silently and non-verbally by signals or signs
	point out carefully and clearly
	provide with traffic signals