listen in

verb

listened in; listening in; listens in

intransitive verb

1
: to tune in to or monitor a broadcast
2
: to listen to a conversation without participating in it
especially : eavesdrop
listener-in
ˌli-sᵊn-ər-ˈin How to pronounce listen in (audio)
ˌlis-nər-
noun

Examples of listen in in a Sentence

it's not polite to listen in on other people's private conversations
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Harry was listening in remotely. Michael Holden, USA Today, 2 Oct. 2025 Holly shared that being on the show taught her the importance of listening in a decades-long relationship. Yamillah Hurtado, PEOPLE, 27 Sep. 2025 His neighbors listen in appreciation to the minute-long tune that was composed during the Civil War to signal lights out for troops. Brittney Melton, NPR, 23 Sep. 2025 This kit can be had for $231, while a DuoMat pack which lets your partner listen in at the same time costs $251 at the time of writing. Abhimanyu Ghoshal, New Atlas, 16 Sep. 2025 See All Example Sentences for listen in

Word History

First Known Use

1905, in the meaning defined at sense 1

Time Traveler
The first known use of listen in was in 1905

Browse Nearby Words

Cite this Entry

“Listen in.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/listen%20in. Accessed 5 Oct. 2025.

Kids Definition

listen in

verb
1
: to listen to a broadcast
2
Last Updated: - Updated example sentences
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