tranquilising vs British spelling

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

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

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

tranquilising (adjective)	British spelling (adjective)
tending to soothe or tranquilize