British spelling vs chemical defence

British spelling and chemical defence both are nouns.

Word	Noun	Adjective	Verb	Adverb
British spelling	Yes	No	No	No
chemical defence	Yes	No	No	No

British spelling (noun)	chemical defence (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')	procedures involved in taking defensive measures against attacks using chemical agents