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banzai; hurray; hurrah; hooray
something to cheer about; something worthy of celebration
giving up; throwing one's hands up
eternal life and prosperity
優勝が決まって観客が万才を叫んだ。
The spectators shouted banzai when the championship was decided.
お正月に家族みんなで万才をした。
The whole family did banzai cheers on New Year's Day.
試合の勝利に観客が万才を上げた。
The audience cheered 'banzai' for the victory in the match.