sectionalisation vs British spelling

sectionalisation and British spelling both are nouns.

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

sectionalisation (noun)	British spelling (noun)
the act of dividing or partitioning; separation by the creation of a boundary that divides or keeps apart	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')