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.

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

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

The traditional keening at the Irish wake added an emotional element to the farewell ceremony.

The lonely lighthouse emitted a keening beam of light that swept across the dark sea.