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 widow sat alone in her empty house, keening softly for the husband she had lost.

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.