1
- a Japanese battle cry冲啊, 杀啊（日本人作战中喊杀声）。
2
- a form of greeting used to the Japanese emperor万岁（日本人对天皇的敬呼）。
- (especially of Japanese troops) attacking fiercely and recklessly（尤指日本军队）拼死厮杀：
a banzai charge.
拼死冲锋。
词源
Japanese， literally 'ten thousand years (of life to you)'.