大だい合がっ唱しょう

noun

large chorus; massed choir

Refers to a large group of singers performing together, or the performance itself. Can also be used figuratively for a chorus of voices or sounds.

• コンサートの最さい後ごに大だい合がっ唱しょうが行おこなわれた。

  A large chorus was performed at the end of the concert.

• 校こう庭ていに生せい徒とたちの大だい合がっ唱しょうが響ひびいた。

  The students' massed chorus echoed across the schoolyard.