爆ばく発はつ音おん

noun

sound of an explosion; explosion noise

Refers to the audible noise produced by an explosion, such as a blast, bang, or boom.

• 遠とおくで爆ばく発はつ音おんが聞きこえた。

  I heard the sound of an explosion in the distance.

• 突とつ然ぜん、大おおきな爆ばく発はつ音おんがして、みんな驚おどろいた。

  Suddenly there was a loud explosion noise, and everyone was startled.