also: にっぽんじゅう
noun, noun which may take the genitive case particle 'no'
throughout Japan; all over Japan
Refers to the whole of Japan as a geographical or cultural area. Often used with verbs of movement, occurrence, or fame.
そのニュースは日本中に広まった。
The news spread throughout Japan.
彼は日本中を旅した。
He traveled all over Japan.