listen in

US /ˈlɪs.ən ɪn/
UK /ˈlɪs.ən ɪn/
"listen in" picture
1.

menguping, mendengarkan secara diam-diam

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.
Aku memergoki adikku mencoba menguping panggilan teleponku.
The neighbors often listen in on our conversations.
Tetangga sering menguping percakapan kami.