Definition of Tokyo in English:
Tokyo
proper nounˈtəʊkɪəʊˈtoʊkiˌoʊ
The capital of Japan; population 12,758,000 (est. 2007). Formerly called Edo, it was the centre of the military government under the shoguns (1603–1867). It was renamed Tokyo in 1868, when it replaced Kyoto as the imperial capital.
Definition of Tokyo in US English:
Tokyo
proper nounˈtoʊkiˌoʊˈtōkēˌō
The capital of Japan, located on the northwestern shores of Tokyo Bay, on the southeastern part of the island of Honshu; population 12,758,000 (est. 2007). Formerly called Edo, it was the center of the military government under the shoguns 1603–1867. Renamed Tokyo in 1868, it replaced Kyoto as the imperial capital.