familiarising vs Australian spelling

familiarising is not a noun while Australian spelling is a noun.

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

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

familiarising (adjective)	Australian spelling (adjective)
serving to make familiar