Keening

The keening stench of decay emanated from the garbage dumpster, making it difficult to pass by.

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

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

The keening voices of the choir brought tears to the audience's eyes.