sensitise vs British spelling

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

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

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

sensitise (verb)	British spelling (verb)
make sensitive or aware
make (a material) sensitive to light, often of a particular colour, by coating it with a photographic emulsion
make sensitive to a drug or allergen
cause to sense; make sensitive