Australian spelling vs stabilisation

Australian spelling and stabilisation both are nouns.

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

Australian spelling (noun)	stabilisation (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	the act of stabilizing something or making it more stable
	the act of making something (as a vessel or aircraft) less likely to overturn