gold coast vs vicinity

gold coast and vicinity both are nouns.

Word	Noun	Adjective	Verb	Adverb
gold coast	Yes	No	No	No
vicinity	Yes	No	No	No

As nouns, vicinity is a hypernym of gold coast; that is, vicinity is a word with a broader meaning than gold coast:

gold coast: a rich neighborhood noted for expensive homes and luxurious living; usually along a coastal area
vicinity: a surrounding or nearby region

Other hypernyms of gold coast include locality, neck of the woods, neighborhood, neighbourhood.

gold coast (noun)	vicinity (noun)
a rich neighborhood noted for expensive homes and luxurious living; usually along a coastal area	a surrounding or nearby region