The term ARIZ. NEIGHBOR is referring to the neighboring states of Arizona. The crossword solutions for this term are CAL (3 letters), CALIF (5 letters), COLO (4 letters), NEV (3 letters), KIG (3 letters), MEX (3 letters), and NMEX (4 letters). These solutions represent the states of California, California, Colorado, Nevada, Kingman, Mexico, and New Mexico, respectively. These states are all located in the southwestern United States and are all neighbors of Arizona.