Terminology
LARP has also been referred to as live role-playing (LRP), interactive literature, and freeform role-playing. Some of these terms are still in common use; however, LARP has become the most commonly accepted term. It is sometimes written in lowercase, as larp. The live action in LARP is analogous to the term live action used in film and video to differentiate works with human actors from animation. Playing a LARP is often called larping, and one who does it is a larper.
Read more about this topic: Live Action Role-playing Game