"Keep your eyes open," he warned her in a deep growl.
There was a second deep growl of thunder, this time closer.
Presently, a deep growl began to build beneath their feet.
The little car gave a deep growl and tore off down the white road.
A deep growl ran through the room with that, but at least I bad their attention now.
The voice from outside was a deep and chilling growl.
When he spoke, his words emerged in a deep growl.
The voice was a very deep growl, even deeper than usual.
But now and then there came a deep growl from some wild animal hidden among the trees.
Timmy suddenly sat up and gave a deep growl again.