A thrumming sound, pulsing through the body of the ship.

Outside the building, I heard the low thrumming sound start up again.

From our position on the rim, we couldn't see into the cave itself, but the thrumming sound suggested activity within.

I began to hear a thrumming sound, low at first, but starting to build.

As they began to walk, Kirk became aware of a dis-tant but growing thrumming sound.

A strange thrumming sound caught his attention, and he glanced up, looking for the aircraft that was causing it.

Ian had to raise his voice over the thrumming sound, which seemed to be all around them.

There was a thrumming sound as a sled moved just beneath her.

Yes, in the stillness of the night there was a faint thrumming sound.

And from behind it, Jake could now hear a steady thrumming sound.