British spelling vs immunisation

British spelling and immunisation both are nouns.

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

British spelling (noun)	immunisation (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')	the act of making immune (especially by inoculation)