The crossword solutions for the term 'NEIGHBOR OF ILL' are Wisconsin (WIS) and Indiana (IND). Wisconsin is a state located in the north-central United States, bordered by Lake Michigan to the east, Michigan to the northeast, and Minnesota and Iowa to the west. Indiana is a state located in the midwestern and Great Lakes regions of North America, bordered by Lake Michigan and Michigan to the north, Ohio to the east, Kentucky to the south, and Illinois to the west. Both Wisconsin and Indiana are neighbors of Illinois, which is located to the east of Wisconsin and to the west of Indiana.