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.

The marathon runner pushed through the pain with a keening determination, longing to cross the finish line.

The keening shriek of the fireworks lit up the night sky.

The marathon runner felt a keening desire to cross the finish line and claim victory.