vaporisation vs British spelling

vaporisation and British spelling both are nouns.

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

vaporisation (noun)	British spelling (noun)
annihilation by vaporizing something	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')
the process of becoming a vapor