British spelling vs terrorise

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

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

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

British spelling (verb)	terrorise (verb)
	fill with terror; frighten greatly
	coerce by violence or with threats