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 old graveyard was filled with the sound of keening voices as mourners gathered to pay their respects.

The abandoned graveyard was filled with the keening of the wind passing through the tombstones.

The mourners joined in a collective keening, their voices blending in a sorrowful chorus that echoed through the valley.