Australian spelling vs aesthetics

Australian spelling and aesthetics both are nouns.

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

Australian spelling (noun)	aesthetics (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	(art) the branch of philosophy dealing with beauty and taste (emphasizing the evaluative criteria that are applied to art)