paramilitary organisation vs British spelling

paramilitary organisation and British spelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
paramilitary organisation	Yes	No	No	No
British spelling	Yes	No	No	No

paramilitary organisation (noun)	British spelling (noun)
a group of civilians organized in a military fashion (especially to operate in place of or to assist regular army troops)	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')