vicinity vs proximity

vicinity and proximity both are nouns.

Word	Noun	Adjective	Verb	Adverb
vicinity	Yes	No	No	No
proximity	Yes	No	No	No

As nouns, proximity is a hyponym of vicinity; that is, proximity is a word with a more specific, narrower meaning than vicinity:

Other hyponyms of vicinity include gold coast, place, scenery.

vicinity (noun)	proximity (noun)
a surrounding or nearby region	the property of being close together
	a Gestalt principle of organization holding that (other things being equal) objects or events that are near to one another (in space or time) are perceived as belonging together as a unit
	the region close around a person or thing