modernisation vs British spelling

modernisation and British spelling both are nouns.

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

modernisation (noun)	British spelling (noun)
making modern in appearance or behavior	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')