Longman Dictionary of Contemporary English homepage

listening device

noun
     
Related topics: Technology
listening device [countable]
T a piece of equipment that allows you to listen secretly to other people's conversations [= bug]

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary