Keening

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

The patient lay in the hospital bed, his keening thoughts consumed by the desire to be healthy again.

The character in the horror movie let out a keening scream that sent chills down the audience's spine.

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

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