They were scared but prepared to defend themselves, while the crowd was making low ominous noises and threatening gestures at them.

One way or another, his stomach was tightening into little knots and making ominous noises.

Outside in the darkness of western Baghdad, gunfire and ominous thumping noises could be heard.

There was an ominous gurgling noise as he breathed.

The army was making ominous noises about events in Southeast Asia.

He could hear an ominous noise that he had heard before, a grinding of teeth.

It didn't move, and there were no ominous noises.

As soon as the sound of the outboard fell, Jason heard another more ominous noise.

But senior city officials have recently made ominous noises about potential problems with the plan.

In fact, if you can use your computer despite the ominous noises, you should back up all data onto another drive immediately.