"SAVING THROWS" "SAVE VERSUS" "SAVE VS" PHYSICAL REFLEX MENTAL

Saving throws are measures of player's resistance to special types of attacks
like poison, magic, etc. When identifying an item, a positive value to a saving
throw is beneficial and a negative is bad. 

There are three types of Saves:
  Physical - abiilty to resist something with your Constitution
  Reflex - ability to avoid something with your Dexterity
  Mental - ability to resist something with your Wisdom

Save all gives a bonus to all three typs of saves.

Increasing your relevant ability scores (and Luck) will improve your saves.

You can see your saving throws on the DEFENSE command.

See Also: IDENTIFY, SAVE, DEFENSE, CASTING