信しん号ごう弾だん

noun

signal flare; pyrotechnic signal

Refers to a device that produces a bright light or smoke for signaling, often used in emergencies or military contexts.

• 遭そう難なん者しゃは信しん号ごう弾だんを打うち上あげて救きゅう助じょを求もとめた。

  The survivors fired a signal flare to call for rescue.

• 軍ぐんの演えん習しゅうで信しん号ごう弾だんが使つかわれた。

  Signal flares were used in the military exercise.