British spelling vs characterise

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

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

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

British spelling (verb)	characterise (verb)
	describe or portray the character or the qualities or peculiarities of
	be characteristic of