Healing is the act of casting a spell or using an item to positively impact your hit points or other's hit points when they have been depleted. There are specific careers centred around healing, such as the Warrior Priest.
Damage Output vs Healing EffectivenessEdit
Warhammer Online has developed an innovative dynamic implemented to combat the tedium of sitting back and pressing one button to spam heals as in other MMORPG's. The multiplicative effects of damage output on healing efficacy are not fully understood, but it is definately apparant that your heals become more effective the more damage you do.