Help Index :: Misc :: Saving Throws

Your "saving throws", or resistances, are listed when you use the
score command. They are displayed as a percentage value, with 0%
being the hypothetical "average" human's resistance versus a particular
element. Negative values imply an increased susceptiblity to that type
of damage, while a positive number indicates that you will take that
percent less damage.

The resistances and their abbreviations displayed on score include:

Mag: General magic
Fir: Fire
Col: Cold
Ele: Electricity
Min: Mind
Aci: Acid
Pos: Poison