Common RPG Glossary

AD&D - Advanced Dungeons and Dragons
D&D - Dungeons and Dragons
GURPS - Generic Universal Role Playing System
IC - In Character
OOC - Out of Character
NPC - Non Player Character
RP - Role Play
RPG - Roleplaying Game
RPGs - Roleplaying Games
RRP - Restricted Role Play
IRC - Internet Relay Chat
LARP - Live Action Role Play
FFRP - Free Form Role Playing
MMORPG - Massively Multiplayer Online Roleplaying Game
MPOG - Multiplayer Online Game