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 abandoned house stood in the distance, its broken windows and overgrown garden giving it a keening presence.

The refugee glanced back at his war-torn homeland with keening eyes, filled with longing for a peaceful life.

The haunting melody of the keening bagpipes played at the memorial service brought a sense of solemnity to the occasion.

The old television emitted a high-pitched keening noise whenever it was turned on.