listen in
US /ˈlɪs.ən ɪn/
UK /ˈlɪs.ən ɪn/
1.
escutar, bisbilhotar
to listen to a private conversation between other people, without them knowing that you are listening
:
•
I caught my sister trying to listen in on my phone call.
Peguei minha irmã tentando escutar minha ligação.
•
The neighbors often listen in on our conversations.
Os vizinhos frequentemente escutam nossas conversas.