Pronunciation: /ˈlɪsən ɪn/
verb To listen to a conversation without participating or being noticed
A1 I listen in to my favorite radio station every morning.
A2 She likes to listen in on other people's conversations.
B1 The detective decided to listen in on the suspect's phone calls.
B2 The journalist was able to listen in on the private meeting and gather important information.
C1 Government agencies often listen in on communication channels to gather intelligence.
C2 The hacker was able to listen in on secure conversations by exploiting a vulnerability in the system.
adverb In a manner that involves listening to a conversation without participating or being noticed
A1 Listen in class and you will learn a lot.
A2 I like to listen in on conversations to gather information.
B1 You can listen in on the meeting through the conference call.
B2 I decided to listen in on the webinar to gain insight into the topic.
C1 The detective was able to listen in on the suspect's phone calls to gather evidence.
C2 It is important to listen in on the negotiations to understand all perspectives before making a decision.
formal Please listen in carefully to the instructions given by the presenter.
informal Hey, make sure to listen in on what she's saying, it's important.
slang Yo, you gotta listen in on this gossip, it's juicy!
figurative Sometimes you need to listen in between the lines to truly understand the message.
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