destabilise vs British spelling

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

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

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

destabilise (verb)	British spelling (verb)
make unstable
become unstable