British spelling vs pressurise

British spelling is a noun but pressurise is not a noun.

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

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

British spelling (verb)	pressurise (verb)
	increase the pressure in or of
	maintain a certain pressure
	increase the pressure on a gas or liquid