(1):
(n.) Commonly, in the United States, a drawing-room, or the room where visitors are received and entertained.
(2):
(n.) In large private houses, a sitting room for the family and for familiar guests, - a room for less formal uses than the drawing-room. Esp., in modern times, the dining room of a house having few apartments, as a London house, where the dining parlor is usually on the ground floor.
(3):
(n.) A room for business or social conversation, for the reception of guests, etc.
(4):
(n.) The apartment in a monastery or nunnery where the inmates are permitted to meet and converse with each other, or with visitors and friends from without.