Keening

The keening sound of the ambulance pierced through the silence of the night.

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

The abandoned graveyard was filled with the keening of the wind passing through the tombstones.

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

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