polemicise vs Australian spelling

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

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

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

polemicise (verb)	Australian spelling (verb)
engage in a controversy