What is the difference between a mortal and an immortal/wizard?

What is the difference between a mortal and an immortal/wizard?

The word "mortal" is normally applied to an "ordinary" player - someone who just logs on and takes on a virtual persona. An immortal (usually abbreviated to "Imm", and also called a "wizard" on a MUSH) has extra powers, and is normally in an administrative or building position. "Extra powers" means the player may be able to do things other players can't, such as force annoying players out of the game, transfer players from one room to another, modify the virtual world (build), and generally keep the game running smoothly. You might regard an administrator player (admin) as similar to an umpire or referee.