Definitions of neighbor:

• noun:   a nearby object of the same kind

  Example: "Fort Worth is a neighbor of Dallas"

• noun:   a person who lives (or is located) near another
• verb:   be located near or adjacent to

  Example: "Pakistan neighbors India"

• verb:   live or be located as a neighbor

  Example: "The neighboring house"

• adjective:   situated near one another

  Example: "Neighbor states"

• name:  A surname (very rare: popularity rank in the U.S.: #37281)