popularise vs British spelling

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

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

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

popularise (verb)	British spelling (verb)
make understandable to the general public
cater to popular taste to make popular and present to the general public; bring into general or common use