What does it mean when a sword has two types of damage?

Hi, this is my first post and I have a question (obviously) what type of damage does a sword with 2 types of damage (example: Divine Avenger) Does it mean (example: Divine Avenger) that it does normal and another type of damage?

every monster is weak to a certain kind of damage and resistant to another, although normal damage does damage to all of them. Check wiki for the specific info. Divine Avenger, for example, does normal and elemental damage. It's one of the the most powerful swords, but due to it's elemental damage it's particularly effective against construct and undead.

ty very much

When a weapon has 2 damage types it means its probably VERY strong