Australian spelling vs destabilise

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

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

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

Australian spelling (verb)	destabilise (verb)
	make unstable
	become unstable