Keening

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

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

The keening shriek of the fireworks lit up the night sky.

The keening aroma of freshly baked bread wafted through the bakery.

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