Synonyms of 'eavesdrop'
The housemaid eavesdropped from behind the kitchen door.
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If someone bugs a place, they hide tiny microphones in it which transmit what people are saying.
He heard they were planning to bug his office.
If someone pries, they try to find out about someone else's private affairs, or look at their personal possessions.
We do not want people prying into our affairs.
Thesaurus for eavesdrop from the Collins English Thesaurus
If you eavesdrop on someone, you listen secretly to what they are saying .