Audiovisual speech refers to the way we communicate using both visual and auditory signals. This includes not only the spoken words but also facial expressions, gestures, and body language that accompany speech. These visual cues can enhance understanding and convey emotions, making communication more effective. In the study of linguistics and psychology, researchers explore how people process audiovisual speech. They examine how the brain integrates auditory information from speech sounds with visual information from lip movements and facial expressions. This integration helps improve comprehension, especially in noisy environments where sound alone may be unclear.