Keening

The keening whistle of the teapot signaled that the water was boiling.

The piercing sound of keening could be heard from miles away, signaling the loss of a respected community leader.

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

As the funeral procession passed by, the sound of keening echoed through the streets.

The keening smell of rotten eggs filled the kitchen, indicating a gas leak.