A dining room is a room for consuming food. In modern times it is usually adjacent to the kitchen for convenience in serving, although in medieval times it was often on an entirely different floor level. Historically the dining room is furnished with a rather large dining table and several dining chairs; the most common shape is generally rectangular with two armed end chairs and an even number of un-armed side chairs along the long sides.
Historical example of a domestic dining room in Germany.
Dining Room in the Łańcut Castle, Poland
Dining room of West End mansion at Hardman Farm near Helen, GA
Dining room at Sam Bell Maxey House in Paris, TX
In a building or ship, a room is any enclosed space within a number of walls to which entry is possible only via a door or other dividing structure. The entrance connects it to either a passageway, another room, or the outdoors. The space is typically large enough for several people to move about. The size, fixtures, furnishings, and sometimes placement of the room within the building or ship support the activity to be conducted in it.
Neolithic room at Skara Brae, Orkney, c. 3,000 BC
Castle Howard, "Lady Georgianas' Dressing Room"
Image: Ateneul Român Sala
Image: Salle des catalogues de la Bibliotheque Mazarine Paris