fertilise vs British spelling

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

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

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

fertilise (verb)	British spelling (verb)
introduce semen into (a female)
provide with fertilizers or add nutrients to
make fertile or productive