What is what does banzai mean?

Banzai is a Japanese word that means "ten thousand years." It is also used as a cheer or exclamation of excitement, triumph or encouragement, similar to "hurrah" or "hooray" in English. It has historical significance as a battle cry of samurai warriors and was later used by Japanese soldiers during World War II. Today, it is often used in Japanese culture during celebrations, festivals, and sporting events, among other occasions.