Meaning of the word "listen in" in English

What does "listen in" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

listen in

US /ˈlɪs.ən ɪn/

UK /ˈlɪs.ən ɪn/

to listen to a private conversation between other people, without them knowing that you are listening

Example:

•

I caught my sister trying to listen in on my phone call.

•

The neighbors often listen in on our conversations.

Synonym:

eavesdrop overhear spy on monitor tap

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