British spelling vs unionisation

British spelling and unionisation both are nouns.

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

British spelling (noun)	unionisation (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')	act of forming labor unions