denationalisation vs British spelling

denationalisation and British spelling both are nouns.

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

denationalisation (noun)	British spelling (noun)
changing something from state to private ownership or control	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')