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.

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

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

The sound of keening could be heard from afar, drawing people to the funeral grounds to pay their respects.