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

The women gathered in the cemetery, their voices intertwining in a mournful keening that honored the departed.