Australian spelling vs centralising

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

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

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

Australian spelling (adjective)	centralising (adjective)
	tending to draw to a central point