monetisation vs British spelling

monetisation and British spelling both are nouns.

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

monetisation (noun)	British spelling (noun)
establishing something (e.g. gold or silver) as the legal tender of a country	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')