The sound swelled on the wind until it reverberated over the wasted city.

The sound of her engine swelled suddenly as she rounded the curve half a mile away.

As the sound from the cistern swelled to its peak, she took to her heels.

Or had the sound of the rain swelled?

Chell left the room quietly and, before she returned, the soft sound of music swelled from the walls.

Meanwhile, the sound of a dirge swells in from behind the village.

He raised the windows, and the sound of the rain swelled.

Almost immediately, that tiny, tentative sound swelled into a fierce complaint.

The sound started as a soft hum and rapidly swelled to a raging shriek.

The sound of raised voices swelled over the square.