derelictjay
Explorer
To me they're interchangeable. I've actually used both in the same sentence when referring to my role.
Which brings up a related quirk, for me its always just "DM", never "Dungeon Master".Doug McCrae said:Dungeon Master sounds like a weird sex thing.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.