dungeon master (plural dungeon masters)

1. (role-playing games) A game master in Dungeons & Dragons games.
   • 1991, Vivian Vande Velde, User Unfriendly‎, page 48:

     He shrugged helplessly. "Whenever we've played before, it was so orderly: people would get their turns one by one, then the dungeon master would say what the results were, then we'd take another turn . . . but this way . . ." He shook his head.

• (game master) DM (abbreviation), game master, GM or ST, storyteller

dungeon master (plural dungeon masters)

1. Alternative spelling of dungeon master