盗とう聴ちょう器き

noun

listening device; bug; wiretap

Refers to a covert electronic device used to eavesdrop on conversations. Can be a physical bug or a wiretap. Often used in contexts of surveillance or espionage.

• 警けい察さつは容よう疑ぎ者しゃの部屋へやに盗とう聴ちょう器きを仕し掛かけた。

  The police planted a listening device in the suspect's room.

• 会かい議ぎ室しつに盗とう聴ちょう器きが仕し掛かけられていないか確かく認にんした。

  We checked whether a bug had been planted in the conference room.