>>6186177depending on the game powerleveling can just mean playing the game "normally" but doing whatever gets exp the fastest and ignoring literally everything else like gearing, crafting, etc. unless it makes you level faster
boosting can refer to doing something similar in pvp where one player who's way better than a second plays with them to that they're basically guaranteed to win and their rating goes up. also in WoW specifically you can spend money to level your character to the start of current content instantly, which is also called boosting
>>6186189morning