memorialisation vs British spelling

memorialisation and British spelling both are nouns.

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

memorialisation (noun)	British spelling (noun)
a ceremony to honor the memory of someone or something	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')