expression, godan verb (-ku)
have sharp ears; have good hearing
Describes someone who can hear well or pick up subtle sounds; often used to mean being quick to catch rumors or information.
彼は耳が利くから、小さな物音でもすぐ気づく。
He has sharp ears, so he notices even small noises right away.
彼女は耳が利くの
She has sharp ears, so she often knows the gossip.