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 keening cries of the wounded soldier could be heard from the battlefield.

As the fog rolled in, a keening foghorn warned ships of the treacherous rocks ahead.

The old haunted house echoed with the keening cries of unseen spirits.

The air raid siren's keening pierced through the city, signaling imminent danger.

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

The sound of keening could be heard from afar, drawing people to the funeral grounds to pay their respects.