proximity

nouns

the property of being close together
is derived from
the region close around a person or thing
is a type of (narrower)
a surrounding or nearby region
"the plane crashed in the vicinity of Asheville"; "it is a rugged locality"; "he always blames someone else in the immediate neighborhood"; "I will drop in on you the next time I am in this neck of the woods"
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