Keening

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

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.

The singer's voice soared in a beautiful keening note, captivating the audience.

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

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