geographical area vs Barbary Coast

geographical area and Barbary Coast both are nouns.

Word	Noun	Adjective	Verb	Adverb
geographical area	Yes	No	No	No
Barbary Coast	Yes	No	No	No

geographical area (noun)	Barbary Coast (noun)
a demarcated area of the Earth	the Mediterranean coast of northern Africa that was famous for its Moorish pirates
	a part of a city that is notorious for gambling dens and brothels and saloons and riotous night life (especially the waterfront of San Francisco after the gold rush of 1849)
	a region of northern Africa on the Mediterranean coast between Egypt and Gibraltar; was used as a base for pirates from the 16th to 19th centuries