city, metropolis, urban center - a large and densely populated urban area; may include several independent administrative districts; "Ancient Troy was a great city"

port - a place (seaport or airport) where people and merchandise can enter or leave a country

Hondo, Honshu - 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

Nihon, Nippon, Japan - a constitutional monarchy occupying the Japanese Archipelago; a world leader in electronics and automobile manufacture and ship building