proximity vs neighbourhood

proximity and neighbourhood both are nouns.

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

As nouns, neighbourhood is a hypernym of proximity; that is, neighbourhood is a word with a broader meaning than proximity:

Other hypernyms of proximity include locality, neck of the woods, neighborhood, vicinity.

proximity (noun)	neighbourhood (noun)
the property of being close together	people living near one another
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	a surrounding or nearby region
the region close around a person or thing