Definitions for "boutique"
A brokerage concentrating on a specific, small market niche.
An ad agency that does limited work. Generally small agencies are referred to as boutiques.
Small niche firm offering specialist advice on a few areas of law.
usually where you leave items for a store setting (sometimes a person's house or barn is made into a Holiday Boutique) to sell yours and others' items to be paid your part less their commission after it is over or periodically if long-running. Essentially a short period consignment.
Keywords:  creative, see
see creative boutique.
a place you go to have a unique, and individually meaningful experience