categorise vs British spelling

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

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

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

categorise (verb)	British spelling (verb)
place into or assign to a category