Roll
Create new character. Also, generate a random number using the in-game loot rolling system, the /roll command, or dice.
RL
Real Life
RFK
Razorfen Kraul, an instance in the Barrens
RFD
Razorfen Downs, an instance in the Barrens
RFC
Ragefire Chasm, an instance in Orgrimmar
Respawn
When a monster that has been killed appears again
Respec
Paying a trainer to unlearn all talents in order to reallocate talent points in a different way. The cost starts at 1 gold and increases to up to a maximum of 50 gold.
Res
Short for resurrect. Return to life after health has been reduced to zero.
Reputation
Determines how NPCs will react to a player. Levels of reputation are Hated, Hostile, Unfriendly, Neutral, Friendly, Honored, Revered, and Exalted. Some items, quests, and recipes require a certain level of reputation to use or obtain. Reputation is gained and lost through killing NPCs and completing quests.
Repair
Pay an NPC to restore all durability to equipment. Higher quality equipment costs more money to repair