'dining-hall' definitions:

Definition of 'dining-hall'

(from WordNet)
noun
A large room at a college or university; used especially for dining

Definition of 'dining-hall'

From: GCIDE
  • dininghall \dininghall\, dining-hall \dining-hall\, dining hall \dining hall\n. a large room at a college or university, used especially for dining. [WordNet 1.5] diningroom