modernise vs British spelling

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

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

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

modernise (verb)	British spelling (verb)
make repairs, renovations, revisions or adjustments to
become technologically advanced