Definition: The word "Tōhoku" refers to a region in Japan, also known as "Kōchi." It's an area located at the easternmost part of Honshu Island, with its capital city being Tokyo. The term has been translated into English as "Tokyo Bay" or "Bay of Tsushima," but it doesn't have any specific meaning that can be easily translated into English. The word "Tōhoku" is a Japanese term for the area surrounding Japan's northeastern coast and is used to refer to coastal regions. It often refers to the bay of Tsushima, which has been an important naval base throughout history due to its strategic location along the east coast of Honshu Island. In Japanese culture, "Tōhoku" typically refers to the region, while the specific term "Bay of Tsushima," also known as "Chūbu Bay" in English, is used for a bay located near the northern part of Japan.