noun

1. 1. Archaic a room set aside for the entertainment of guests; formal sitting room
   2. Old-fashioned any living room
2. a small, semiprivate sitting room or meeting room apart from the main lounges in a hotel, inn, etc.
3. 1. Old-fashioned a business establishment elegantly furnished to resemble a private sitting room an ice-cream parlor
   2. now, a shop or business establishment, often with some special equipment or furnishings for personal services a beauty parlor

Etymology: ME parlour < OFr parleor < parler: see parley