British spelling vs catalyse

British spelling is a noun but catalyse is not a noun.

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

British spelling (noun)	catalyse (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')

British spelling (verb)	catalyse (verb)
	change by catalysis or cause to catalyze