The crossword solutions for the term N.J. Neighbor are Penn (4 letters) and Del (3 letters). Penn is an abbreviation for Pennsylvania, which is a state located in the Northeastern United States. It is bordered by New Jersey to the east, Delaware to the southeast, Maryland to the south, West Virginia to the southwest, and Ohio to the west. Del is an abbreviation for Delaware, which is a state located on the Atlantic Coast of the United States. It is bordered by Pennsylvania to the north, Maryland to the south and west, and the Atlantic Ocean to the east. Both Pennsylvania and Delaware are neighbors of New Jersey.