/bɑnˈzaɪ, ˈbɑn-; Japanese ˈbɑnˈdzɑi/Show Spelled[bahn-zahy, bahn-; Japanesebahn-dzah-ee]Show IPA
interjection
1.
(used as a Japanese patriotic cry or joyous shout.)
2.
(used as a Japanese battle cry.)
adjective
3.
leading to likely or inevitable death; suicidal: a banzai attack by Japanese troops in the last days of World War II.
Origin: 1890–95; < Japanese, equivalent to ban ten thousand + -zai, combining form of sai years of age (< Middle Chinese, akin to Chinesewàn-suì,Koreanmanse)
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
a fool or simpleton; ninny.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
Japanese war-cry, 1893, lit. "(may you live) ten thousand years," originally a greeting addressed to the emperor, from ban "ten thousand" + sai "year."