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.

The old graveyard was filled with the sound of keening voices as mourners gathered to pay their respects.

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

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

The keening tone of his voice conveyed the depth of his heartbreak.