what language is used in japan
Yaeyama. 14. Yonaguni. 15. Yoron. English is the most widely used foreign language in Japan. Japanese is the national language and the only one really used. However, there are many regional dialects such as the one spoken in Osaka, which sometimes has radically different words than those in standard Japanese.aeyama. 14. Yonaguni. 15. Yoron. English is the most widely used foreign language in Japan. Japanese is the national language and the only one really used. However, there are many regional dialects such as the one spoken in Osaka, which sometimes has radically different words than those in standard Japanese.