polemise vs Australian spelling

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

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

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

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