Keening

The keening whistle of the tea kettle signaled that the water had boiled.

The keening whistle of the teapot signaled that the water was boiling.

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 haunting melody of keening echoed through the ancient ruins, commemorating the souls who had departed.