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 horror movie was accompanied by a soundtrack of keening voices, adding to the creepy atmosphere.

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

The keening smell of rotten eggs indicated a gas leak in the basement.

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

The eerie keening of the siren warned the residents of the impending storm.