Keening

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

The patient lay in the hospital bed, his keening thoughts consumed by the desire to be healthy again.

The character in the novel was portrayed as a keening figure, forever yearning for redemption and forgiveness.

The haunting melody of the keening bagpipes played at the memorial service brought a sense of solemnity to the occasion.