driver's licence vs Australian spelling

driver's licence and Australian spelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
driver's licence	Yes	No	No	No
Australian spelling	Yes	No	No	No

driver's licence (noun)	Australian spelling (noun)
a license authorizing the bearer to drive a motor vehicle	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')