polarise vs Australian spelling

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

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

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

polarise (verb)	Australian spelling (verb)
become polarized in a conflict or contrasting situation
cause to concentrate about two conflicting or contrasting positions
cause to vibrate in a definite pattern