British spelling vs memorialisation

British spelling and memorialisation both are nouns.

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

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