screech

This word conveys a sense of suddenness and violence. It is not just a loud noise, but one that is physically jarring or uncomfortable to the ear, often triggering a fight-or-flight response in the listener. It suggests a lack of control, whether it is a person panicking or a mechanical failure. In social contexts, using this word to describe a person's voice usually implies a negative judgment, suggesting the sound is irritating, hysterical, or overly aggressive. It differs from a scream in that a screech is often thinner and more grating, lacking the deep volume of a roar.