British spelling vs primary colour

British spelling and primary colour both are nouns.

Word	Noun	Adjective	Verb	Adverb
British spelling	Yes	No	No	No
primary colour	Yes	No	No	No

British spelling (noun)	primary colour (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')	any of three colors from which all others can be obtained by mixing