Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb listen_in

2 senses of listen in

Sense 1
listen in -- (listen quietly, without contributing to the conversation)
       => listen -- (hear with intention; "Listen to the sound of this cello")

Sense 2
listen in, eavesdrop -- (listen without the speaker's knowledge; "the jealous man was eavesdropping on his wife's conversations")
       => listen -- (hear with intention; "Listen to the sound of this cello")