AC - Armor Class or Defense. Add - An extra monster has joined an existing battle. Alt - A character on your account other than your main character. AOE - Area of Effect Damage. This is a spell that hurts a group of monsters in an area like Blizzard in Warcraft III. AE - Area Effect AFK - Away from Keyboard. This means the player is away from his computer. Aggro - This means the monsters are mad at you and you've “activated” them to attack you. They are now in the motion of trying to reach...