Australian spelling vs familiarise

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

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

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

Australian spelling (verb)	familiarise (verb)
	make familiar or conversant with