British spelling vs Aegean civilisation

British spelling and Aegean civilisation both are nouns.

Word	Noun	Adjective	Verb	Adverb
British spelling	Yes	No	No	No
Aegean civilisation	Yes	No	No	No

British spelling (noun)	Aegean civilisation (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')	the prehistoric civilization on the islands in the Aegean sea and the surrounding countries