1.   And when I listened closely, I could hear a muted grinding sound in her third gear.

2.   As the locomotives strain, the port side of the ship touches the lock wall, making a low-pitched grinding sound.

3.   But before they reached the sailboat, they heard a grinding sound, and Locks spotted a man in the water.

4.   Suddenly there came a tremor, then a grinding sound, from deep within the ice.

5.   That giant grinding sound you hear under the Capitol dome is the political equivalent of reinventing the wheel.

6.   The high-pitched whine of the drill combined with the grinding sound of bone was not pleasant, but Furr dosed through some of the procedure.