capitalise vs British spelling

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

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

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

capitalise (verb)	British spelling (verb)
convert (a company's reserve funds) into capital
consider expenditures as capital assets rather than expenses
compute the present value of a business or an income
write in capital letters
draw advantages from
supply with capital, as of a business by using a combination of capital used by investors and debt capital provided by lenders