sitting room

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A living room.

from The Century Dictionary.

• noun Sufficient space for sitting in: as, sitting-room could not be got in the hall.
• noun A room in which people sit; in many houses, the parlor or room most commonly occupied by the family.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A living-room; a room in a house where people pass the time in leisure.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a room in a private house or establishment where people can sit and talk and relax