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

As the casket was lowered into the ground, the mourners erupted in heart-wrenching keening, expressing their sorrow.

The widow sat alone in her empty house, keening softly for the husband she had lost.

The ancient ritual involved participants keening together to honor their ancestors.