Australian spelling vs advertise

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

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

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

Australian spelling (verb)	advertise (verb)
	make publicity for; try to sell (a product)
	call attention to