Islamise vs British spelling

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

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

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

Islamise (verb)	British spelling (verb)
convert to Islam
cause to conform to Islamic law