motorisation vs British spelling

motorisation and British spelling both are nouns.

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

motorisation (noun)	British spelling (noun)
the act of motorizing (equipping with motors or with motor vehicles)	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')