2sy) (n)- a person who shares errything, including "doorfs."
3) (n)- a person who can be counted on to be an incredible person, even in the crappiest of situations.
4) (n)- a person that can't be lived without.
5) (n)- a word that can't really be captured through a written definition.
The term "neighbor" is also used for telecommunications guys and girls who walk or drive by within 350 ft (or up to a mile) with empty cans resembling cola cans or coffee mugs which they use as a listening device.