In digital marketing and web design, resolution refers to the amount of detail an image or display contains, measured in pixels. For images, it's often defined by width and height in pixels, while for screens, it's described by the density of pixels in a given area, typically per inch (PPI). High resolution means more pixels and finer detail, leading to clearer and more precise images. Understanding and optimizing resolution is essential for ensuring high-quality visuals in digital content, as it affects the appearance on various devices and screen sizes.