multicolour vs British spelling

multicolour is not a noun while British spelling is a noun.

Word	Noun	Adjective	Verb	Adverb
multicolour	No	Yes	No	No
British spelling	Yes	No	No	No

multicolour (noun)	British spelling (noun)
	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')

multicolour (adjective)	British spelling (adjective)
having sections or patches colored differently and usually brightly