What does eavesdropping mean?
Eavesdropping is the act of secretly listening to other people's private conversation without their knowledge or consent. The word originated in old English property law: an 'eavesdrip' was the strip of earth just outside a house's walls where rainwater dripped from the eaves, and someone standing there was close enough to hear voices inside. Today the term covers both literal overhearing — pressing an ear to a door, lingering nearby — and, by extension, the covert interception of phone calls and digital communications. It is used both as a noun ('the recording was obtained by eavesdropping') and as the gerund of the verb 'to eavesdrop'. Deliberate eavesdropping generally carries a disapproving tone, suggesting nosiness or intrusion into privacy, and in many jurisdictions it names a specific criminal offence or civil wrong. Related words include wiretap, surveillance, and snooping, though each has its own distinct shade of meaning.
nounThe act of secretly listening to a private conversation without the consent of those speaking.
- Secretly listening to a private conversation without consent.
- By extension, covertly intercepting communications such as phone calls or data transmissions.
"She was caught eavesdropping on her parents' argument through the door."
"He was caught eavesdropping on the interview from behind the partition."
"Modern encryption protects messages from eavesdropping on public networks."
The word comes from standing under a house's 'eavesdrop' — the strip of ground where rain drips off the roof — close enough to the window to hear what's said inside.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of eavesdropping
Eavesdropping derives from the Middle English noun 'eavesdrop' or 'eavesdripe', meaning the ground on which water drips from the eaves of a roof. In medieval English custom, a person who stood within this drip-line outside another's dwelling could plausibly be accused of listening in, which gave rise to the verb 'to eavesdrop' and its gerund 'eavesdropping'. The word thus preserves a vivid image of a listener lurking at the edge of a house, and it entered figurative use for secret listening generally by the early modern period.
Related word forms
How eavesdropping is actually used
Neutral as a plain description of overhearing, but carries a negative connotation of intrusiveness when deliberate. In law, 'eavesdropping' often names a specific offence or tort involving recording or intercepting conversations without consent, and its legal definition varies by jurisdiction.
Easily confused with eavesdropping
Wiretapping specifically refers to intercepting telephone or electronic communications, while eavesdropping more broadly covers any secret listening, including in person.