Australian spelling vs ostracise

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

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

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

Australian spelling (verb)	ostracise (verb)
	avoid speaking to or dealing with
	expel from a community or group