A store that sells a stated product, or a business that provides a stated service. (Cambridge Dictionary)
A room in a private house used esp. for entertaining guests. (Cambridge Dictionary)
A room used primarily for conversation or the reception of guests. (Merriam – Webster)
A sitting room in a private house. (Oxford Dictionaries)
Parlor is used in the names of some types of stores that provide a service, rather than selling things. (Collins Dictionary)
Parlour – Wikipedia.
Photo Gallery of Dream – Barbershop/Beauty Parlor