a high-speed train, or the rail system in which it runs, in Japan
2.
any such high-speed train
bullet train in American English
noun
a high-speed passenger train, as on certain routes in Japan
Word origin
[1965–70]This word is first recorded in the period 1965–70. Other words that entered Englishat around the same time include: Finlandization, T cell, no-fault, overdub, stun gun