Honor System (WoW)  

Definition

Once your character reaches level 10, you can start to PvP in order to earn honor through Battlegrounds such as Warsong Gulch. Honor refers to the building up of points through PvP in order to gain rewards. Such rewards can be in the form of armor or weapons. Healing and Mana potions can be purchased with honor. You can even buy special PvP Mounts with honor. By participating in Battlegrounds, you also gain Reputation with the associated faction.

Earning Honor