Muffle

The sound of the rain on the roof was a comforting muffle that helped him sleep.

The teacher asked the students to muffle their voices during the exam.

The dense muffle of cotton balls made it difficult to hear anything.

She wrapped a soft muffle around her neck to soothe the soreness from a cold.

The parents tried to muffle their children's fighting by closing the door.

The heavy muffle of the coat she wore kept her warm in the cold weather.

The saxophonist lost his muffle during the gig and had to borrow one from a fellow musician.