sound
proof
1
preventing sound from entering or leaving a room or space, typically through the use of special materials or construction techniques
- The walls of the studio are soundproof to ensure quiet recording conditions.
- She installed soundproof windows to block the traffic noise.
- The conference room is soundproof for private meetings.
- They bought a soundproof door to keep noise from disturbing the neighbors.
- He wore soundproof headphones to concentrate in the noisy environment.