Keening

The keening screech of the brakes startled the pedestrians on the busy street.

The keening screech of the brakes startled the pedestrians on the sidewalk.

The keening of the steam whistle signaled the departure of the train from the platform.

The keening smell of rotten eggs filled the kitchen, indicating a gas leak.

The keening smell of rotten eggs indicated a gas leak in the basement.

The keening sound of the foghorn guided ships safely through the thick mist.

The eerie keening of the siren warned the residents of the impending storm.