fitting room

This term refers specifically to the designated space in retail environments. While "changing room" is a common synonym, "fitting room" more strongly emphasizes the purpose of verifying the fit and size of a garment rather than simply changing clothes. It is a neutral, standard term used across all levels of retail, from budget stores to high-end boutiques.

In a commercial context, these areas are often managed by staff to control the number of items a customer takes inside, making the term a focal point for store policy and customer service interactions.