depersonalisation vs British spelling

depersonalisation and British spelling both are nouns.

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

depersonalisation (noun)	British spelling (noun)
representing a human being as a physical thing deprived of personal qualities or individuality	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')
emotional dissociative disorder in which there is loss of contact with your own personal reality accompanied by feelings of unreality and strangeness
(existentialism) a loss of personal identity; a feeling of being an anonymous cog in an impersonal social machine