Hit points
From ThresholdRPG Wiki
Hit Points (or HP) is a number that represents the amount of life force you have. Hit points are valuable; guard them carefully for if you run out, you transition from a state of living to that of dead.
Some guilds, races, stats, and other effects can temporarily or permanently increase or decrease your maximum hit points.
You can check your current HP, SP, and EP by typing hp in game.
