Keening

The keening sound of the ambulance siren signaled a tragedy unfolding on the streets.

As the fog rolled in, a keening foghorn warned ships of the treacherous rocks ahead.

The distant keening of the siren warned of an approaching storm.

The keening sound of the ambulance siren pierced through the busy city streets.

The haunting melody of the keening bagpipes played at the memorial service brought a sense of solemnity to the occasion.