British spelling vs sensitising

British spelling and sensitising both are nouns.

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

British spelling (noun)	sensitising (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')	rendering an organism sensitive to a serum by a series of injections

British spelling (adjective)	sensitising (adjective)
	making susceptible or sensitive to either physical or emotional stimuli