doughnut vs Australian spelling

doughnut and Australian spelling both are nouns.

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

doughnut (noun)	Australian spelling (noun)
a small ring-shaped friedcake	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')
a toroidal shape