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.

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 character in the horror movie let out a keening scream that sent chills down the audience's spine.

The injured bird emitted a keening cry, signaling its distress.