The term 'SHOGUN's Domain' refers to the area of JAPAN that was ruled by a SHOGUN, a military leader appointed by the emperor. The SHOGUN had complete control over the land and its people, and the domain was usually much larger than the area controlled by the emperor. The crossword solution for this term is JAPAN, which is a country located in East Asia. It is made up of four main islands and many smaller ones, and it has a long history of both imperial and shogunal rule.