assembly room 
noun chiefly British
A public room or hall in which meetings or social functions are held: [in names]: the Derby Assembly Rooms...
- It drew laughter from the other schoolchildren packed into the assembly room.
- Meriod Hall was a great assembly room in the centre of town, a large, fine space with glossed wood floors, and brightened by chandelier light.
- The first floor would be used for training and the ground floor would have an assembly room, lounge and refreshment bar.
- metamere
- metameric
- metamerically
- metamerisation
- metamerised
- metamerism
- metamerization
- metamerized
- metamerous
- metamery
- metamessage
- meta-metalanguage
- metamict
- metamictization
- metamictness
- metamodel
- metamorphic
- metamorphical
- metamorphise
- metamorphism
- metamorphize
- metamorphogenic
- metamorphopsia
- metamorphose
- metamorphosic