号ごう令れい一いっ下か

noun

at the word of command; upon receiving the order; as soon as the order is given

Used when an action is taken immediately after a command or instruction is issued. Often appears in formal or military contexts, but can be used in organizational settings.

See also: 一下 · 命令一下 (めいれいいっか)

• 号ごう令れい一いっ下か、全ぜん員いんが一いっ斉せいに動うごき出だした。

  At the word of command, everyone started moving at once.

• 号ごう令れい一いっ下か、選せん手しゅたちはスタートラインに立たった。

  As soon as the order was given, the athletes lined up at the start line.