listening device (B2)
noun phrase
Pronunciation: /ˈlɪsənɪŋ dɪˈvaɪs/
Definition
An electronic tool used to secretly hear or record conversations, often used for surveillance or espionage purposes.
Examples
The company installed a listening device in the conference room to monitor employee discussions.
The spy used a listening device to eavesdrop on the enemy's plans.
The government was accused of using listening devices to spy on its citizens.
How to Use listening device
- use a listening device (verb phrase)
- to use a device to secretly hear or record conversations — "The police used a listening device to gather evidence."
- install a listening device (verb phrase)
- to put a device in place to secretly hear or record conversations — "The company installed a listening device in the conference room."
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