Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “listen in (on something)”

listen in (on something)

phrasal verb with listen    /ˈlɪs·ən/ verb [I]
to listen to someone’s conversation when the person does not realize you are doing it: She thinks her boss is listening in on her phone conversations .
(Definition of listen in (on something) from the Cambridge Academic Content Dictionary © Cambridge University Press)
Focus on the pronunciation of listen in (on something)

Word of the Day

familiarity

a good knowledge of something, or the fact that you know it so well

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More