Australian spelling vs immobilisation

Australian spelling and immobilisation both are nouns.

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

Australian spelling (noun)	immobilisation (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	the act of limiting movement or making incapable of movement
	fixation (as by a plaster cast) of a body part in order to promote proper healing