economic mobilisation vs British spelling

economic mobilisation and British spelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
economic mobilisation	Yes	No	No	No
British spelling	Yes	No	No	No

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