A slide in a presentation is a single page or screen that displays information, images, or graphics to support a speaker's message. Slides are commonly used in software like Microsoft PowerPoint or Google Slides to create visual aids that enhance understanding and engagement during a presentation. Each slide typically contains a combination of text, images, charts, or videos, organized in a clear and visually appealing manner. Presenters use slides to highlight key points, making it easier for the audience to follow along and retain information. The overall design and layout of slides can significantly impact the effectiveness of the presentation.