Keening

The mourners swayed and chanted in a keening rhythm, honoring the memory of the deceased.

The keening cries of the wounded soldier could be heard from the battlefield.

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

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

The injured bird emitted a keening cry, signaling its distress.