subsidise vs Australian spelling

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

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

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

subsidise (verb)	Australian spelling (verb)
support through subsidies
secure the assistance of by granting a subsidy, as of nations or military forces