British capital vs Lombard Street

British capital and Lombard Street both are nouns.

Word	Noun	Adjective	Verb	Adverb
British capital	Yes	No	No	No
Lombard Street	Yes	No	No	No

British capital (noun)	Lombard Street (noun)
the capital and largest city of England; located on the Thames in southeastern England; financial and industrial and cultural center	a street in central London containing many of the major London banks