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

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.

The keening voices of the choir brought tears to the audience's eyes.

The keening tone of his voice conveyed the depth of his heartbreak.