Having keen hearing or ability to perceive sounds easily.

तेज सुनने वाला

English Usage: She is known for her sharp ears, able to hear conversations from across the room.

Hindi Usage: वह तेज सुनने वाली है, जो कमरे के पार से बातचीत सुन सकती है।

Quick to notice or perceive.

सजग

English Usage: His sharp ears picked up the faintest rustle in the bushes.

Hindi Usage: उसके सजग कानों ने झाड़ियों में हलकी सरसराहट सुन ली।

To become more acute or intense.

तीव्र बनाना

English Usage: He sharped his attention when the teacher mentioned the exam.

Hindi Usage: जब शिक्षक ने परीक्षा का जिक्र किया, तो उसने अपनी ध्यान को तीव्र कर लिया।