catalyse vs British spelling

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

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

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

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