tricolour vs Australian spelling

tricolour and Australian spelling both are nouns.

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

tricolour (noun)	Australian spelling (noun)
a flag having three colored stripes (especially the French flag)	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')