deputise vs British spelling

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

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

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

deputise (verb)	British spelling (verb)
appoint as a substitute
act as a substitute