- noun the graphical image that is used to represent a real person in a cyberspace or three-dimensional system, e.g. the image of a person in a three-dimensional adventure game
- noun the name for the superuser account on a UNIX system.
- An image, such as a cartoon, an animal, or that of another person, that is utilized to visually represent a real user in settings such as 3D chat rooms or online games. An avatar usually appears as three-dimensional.
- noun a computer-generated icon or figure representing a character in a virtual world