
1) Hearing 2) Listeningin
Found on
https://www.crosswordclues.com/clue/eavesdropping

1) Listening furtively 2) Listening secretly
Found on
https://www.crosswordclues.com/clue/eavesdropping

Eavesdropping is secretly listening to the private conversation of others without their consent, as defined by Black`s Law Dictionary. This is commonly thought to be unethical and there is an old adage that `eavesdroppers seldom hear anything good of themselves...eavesdroppers always try to listen to matters that concern them.` == Techniques ==......
Found on
http://en.wikipedia.org/wiki/Eavesdropping

• (n.) The habit of lurking about dwelling houses, and other places where persons meet fro private intercourse, secretly listening to what is said, and then tattling it abroad. The offense is indictable at common law.
Found on
http://thinkexist.com/dictionary/meaning/eavesdropping/
Eaves'drop`ping noun (Law) The habit of lurking about dwelling houses, and other places where persons meet for private intercourse, secretly listening to what is said, and then tattling it abroad. The offense is indictable at common law.
Wharton. Found on
http://www.encyclo.co.uk/webster/E/4

Listening to conversations or observing conduct that is meant to be private. The term comes from the common law offense of listening to private conversations by crouching under the windows or eaves of a house. Generally, the term is used when the activity is not legally authorized by a search warrant or court order. Compare: surveillance
Found on
http://www.nolo.com/dictionary/eavesdropping-term.html
No exact match found.