Definition - What does Resolution mean?
Resolution is a measure used to describe the sharpness and clarity of an image or picture and is often used as a metric for judging the quality of monitors, printers, digital images and a various other hardware and software technologies. The term is especially popular in the mobile industry for describing a mobile device's display capabilities, and also in the entertainment media to distinguish the visual quality of movies and to distinguish between high definition and standard definition movies.
Techopedia explains Resolution
For audio, resolution refers to the bit depth of a digital recording, or the number of information bits stored in the sample. This also correlates directly to the recording's quality. For printers, resolution points to the dots per inch (DPI) of the material the printer produces, which also indicates how small and fine the dots are. The higher the DPI, the sharper the printout will be.