What does OK mean in World of Warcraft? OK WoW Term Definition

The term OK when used in World of Warcraft refers to Old Kingdom. More specifically it means Ahn’Kahet: The Old Kingdom, a 5-man instanced dungeon in Northrend. It is located in the Pit of Narjun, in western Dragonblight, along with Azjol-Nerub. The OK WoW term definition is common knowledge among virtually all players with Northrend characters.