号ごう砲ほう

noun

signal gun; starting gun

Refers to the gun or cannon fired as a signal, especially to start a race or event. Often used in sports reporting.

• 号ごう砲ほうが鳴なり、選せん手しゅたちは一いっ斉せいに走はしり出だした。

  The starting gun sounded and the athletes all started running at once.