Australian spelling vs people of colour

Australian spelling and people of colour both are nouns.

Word	Noun	Adjective	Verb	Adverb
Australian spelling	Yes	No	No	No
people of colour	Yes	No	No	No

Australian spelling (noun)	people of colour (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')	a race with skin pigmentation different from the white race (especially Blacks)