British spelling vs sanitise

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

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

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

British spelling (verb)	sanitise (verb)
	make less offensive or more acceptable by removing objectionable features
	make sanitary by cleaning or sterilizing