What is "overhears"

Usage examples of "overhears".

But afterward, Chris overhears his comment to a group of dark-suited men, no doubt influential French communists, "Cambodia is already a land of blood and bitter tears.

It overhears everything, but this is the first time it has put information together into a new configuration.

And what it doesn't learn that way it overhears by the trace of it that trickles through our phone lines and over our air waves.