- Honshu, Hondo - the central and largest of the four main islands of Japan; between the Sea of Japan and the Pacific Ocean; regarded as the Japanese mainland
--1 is a kind of island
--1 is a part of Japan, Japanese Islands, Japanese Archipelago
--1 has parts:Tokyo, Tokio, Yeddo, Yedo, Edo, Japanese capital, capital of Japan; Nagano; Nagoya; Omiya; Osaka; Yokohama; Kyoto; Hiroshima; Asama, Mount Asama