Keening

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

The mourners joined in a collective keening, their voices blending in a sorrowful chorus that echoed through the valley.

As the funeral procession passed by, the sound of keening echoed through the streets.

The ancient ritual involved participants keening together to honor their ancestors.

The lonely lighthouse emitted a keening beam of light that swept across the dark sea.

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