luistervinken (ww):
escuchar disimuladamente / escondidamente / furtivamente / recatadamente / cautelosamente(en) to hear a conversation one is not intended to hear., oír por casualidad / sin querer / casualmente / impremeditadamente(en) to hear something that wasn't meant for one's ears., fisgonear(en) to hear a conversation one is not intended to hear.
cached Via: Dbnary en WikiWoordenboeken
Via: Memodata.com