The term 'Diamond Decision' is a phrase used in the game of baseball to refer to the umpire's CALL when a runner is OUT at home plate. The crossword solutions for this term are SAFE (4 letters), FAIR (4 letters), CALL (4 letters), OUT (3 letters), and YOUREOUT (8 letters). SAFE indicates that the runner is SAFE, FAIR indicates that the umpire's CALL was FAIR, CALL indicates that the umpire made the CALL, OUT indicates that the runner is OUT, and YOUREOUT is a phrase used by the umpire to indicate that the runner is OUT.