shinkansen
The Shinkansen (新幹線?, new trunk line), also known in the western world as bullet train, is a network of high-speed railway lines in Japan. The popular English name bullet train is a literal translation of the Japanese term dangan ressha (弾丸列車?), a nickname given to the project while it was initially being discussed in the 1930s. The name stuck because of the original 0 Series Shinkansen's resemblance to a bullet and its high speed. (from Wikipedia)
Wikipedia page: https://en.wikipedia.org/wiki/Shinkansen