Source : Webster's Revised Unabridged Dictionary (1913)

Neighbor \Neigh"bor\ (n[=a]"b[~e]r), n. [OE. neighebour, AS.
   ne['a]hgeb[=u]r; ne['a]h nigh + geb[=u]r a dweller, farmer;
   akin to D. nabuur, G. nachbar, OHG. n[=a]hgib[=u]r. See
   {Nigh}, and {Boor}.] [Spelt also {neighbour}.]
   1. A person who lives near another; one whose abode is not
      far off. --Chaucer.

            Masters, my good friends, mine honest neighbors.
                                                  --Shak.

   2. One who is near in sympathy or confidence.

            Buckingham No more shall be the neighbor to my
            counsel.                              --Shak.

   3. One entitled to, or exhibiting, neighborly kindness;
      hence, one of the human race; a fellow being.

            Which now of these three, thinkest thou, was
            neighbor unto him that fell among the thieves?
                                                  --Luke x. 36.

            The gospel allows no such term as ``stranger;''
            makes every man my neighbor.          --South.

Neighbor \Neigh"bor\, a.
   Near to another; adjoining; adjacent; next; neighboring.
   ``The neighbor cities.'' --Jer. l. 40. ``The neighbor room.''
   --Shak.

Neighbor \Neigh"bor\, v. i.
   To dwell in the vicinity; to be a neighbor, or in the
   neighborhood; to be near. [Obs.]

         A copse that neighbors by.               --Shak.

Source : WordNet®

neighbor
     adj : situated near one another; "neighbor states" [syn: {neighbour},
            {neighboring(a)}, {neighbouring(a)}]

neighbor
     n 1: a person who lives (or is located) near another [syn: {neighbour}]
     2: a nearby object of the same kind; "Fort Worth is a neighbor
        of Dallas"; "what is the closest neighbor to the Earth?"
        [syn: {neighbour}]
     v 1: live or be located as a neighbor; "the neighboring house"
          [syn: {neighbour}]
     2: be located near or adjacent to; "Pakistan neighbors India"
        [syn: {neighbour}]