Keening

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

The horror movie was accompanied by a soundtrack of keening voices, adding to the creepy atmosphere.

The old man sat by the grave, keening softly for his departed wife.

The haunting sound of keening filled the air as the people paid their respects to the fallen soldiers.

The keening shriek of the fireworks lit up the night sky.

The old television emitted a high-pitched keening noise whenever it was turned on.