British spelling vs harmonisation

British spelling and harmonisation both are nouns.

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

British spelling (noun)	harmonisation (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')	singing in harmony
	a piece of harmonized music