conceptualise vs British spelling

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

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

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

conceptualise (verb)	British spelling (verb)
have the idea for