A parlor is a living room or a sitting room, the place in your house with comfortable chairs and sofas. You might also decide to put your giant new TV in the parlor.
The noun parlor is an old-fashioned one. Still, almost anyone would know what you meant if you invited them to join you in the parlor for tea. These days, a hotel, inn, or historic house is more likely to have a parlor than a private home is. The thirteenth century version, parlur, meant "room in a monastery for holding conversations." The "conversations" part stems from parler, "to speak" in French.