Do you listen in on God's council?
She likes to listen in on other's private conversation.
You shouldn't listen in on other people's conversations.
He assigned federal agents to listen in on Martin Luther King's phone calls.
How dare you pick up the phone and listen in on my conversations!
We were allowed to listen in on a lively lecture on how top-down management systems don't often work.
From his hotel room, Mr. Serani can roll a robot up to an office cubicle back at headquarters, listen in on a telephone sales pitch and offer advice.
