The infinitesimal open set of all points that may be reached directly from a given point; The set of all the vertices adjacent to a given vertex
people living near one another; "it is a friendly neighborhood"; "my neighborhood voted for Bush"
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"
The neighbourhood of a place or person is the area or the people around them. He was born and grew up in the Flatbush neighbourhood of Brooklyn
neigh·bour·hood neighbourhoods in AM, use neighborhood1. A neighbourhood is one of the parts of a town where people live. It seemed like a good neighbourhood to raise my children. = area