720p is a term used to describe a specific resolution for high-definition video. It means the image has 720 horizontal lines of pixels, with a typical aspect ratio of 16:9. This resolution is often found in televisions, computer monitors, and streaming services, providing a clearer and more detailed picture than standard definition. The "p" in 720p stands for "progressive scan," which means that each frame of video is drawn in a single pass, resulting in smoother motion. This makes 720p a popular choice for watching movies, TV shows, and playing video games, as it offers a good balance between quality and file size.