Australian spelling vs advertising

Australian spelling and advertising both are nouns.

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

Australian spelling (noun)	advertising (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	the business of drawing public attention to goods and services
	a public promotion of some product or service