visualisation vs British spelling

visualisation and British spelling both are nouns.

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

visualisation (noun)	British spelling (noun)
a mental image that is similar to a visual perception	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')