decriminalise vs British spelling

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

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

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

decriminalise (verb)	British spelling (verb)
make legal