Another shrill blast of the trumpet and the battle began.

The shrill blast of a police whistle echoed in his ears.

So too was the shrill blast of a ship's horn in proximity.

The shrill blast of a whistle came from the street.

It was broken by the shrill blast of a police whistle.

He put two fingers into his mouth and blew a shrill blast.

A series of shrill blasts from the engine called for help.

From the rear street a police whistle echoed in a shrill blast.

Then there came a shrill blast on the whistle from one of the instructors, and it was all over.

The shrill blast of a police whistle sounded from the spot where the cab had been.