n. In geometric topics, a place, A, is said to be in the vicinity of a place, B, within a place, C, which contains both A and B, and in a given respect, if, and only if, an object instantaneously filling A can by an ordinary motion move to B without ever leaving C, and without at any instant during its motion occupying any place which differs from A in the given respect.n. The quality of being near; nearness in place; propinquity; proximity.n. Neighborhood; surrounding or adjoining space, district, or country.n. Nearness in intercourse; close relationship.n. Synonyms Proximity, etc. See neighborhood.