Hit points
From MUME
Hit points (hps) is a way of representing how much physical damage your character can endure before dying. Being low on hit points means that you character is closer to death than when he or she is high on hit points.
By default, your current level of hit points is displayed in your prompt. If nothing is shown, it means your are not wounded at all; otherwise, one of the following words is displayed (in descending order of health): Fine > Hurt > Wounded > Bad > Awful.
It is not a good idea starting a fight at wounded or below.
See also: Mana, Movement points