Keening

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

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

As the funeral procession passed by, the sound of keening echoed through the streets.

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

The scientist dedicated countless hours to research, driven by a keening curiosity to unlock the mysteries of the universe.