Clientele refers to the group of customers who regularly do business with a particular store, restaurant, professional, or company. A hair salon's clientele might include families from the neighborhood who come back month after month. A bookstore's clientele might be mostly students and teachers who love reading.

The word suggests ongoing relationships rather than random, one-time visits. A pizza place doesn't just serve people: it builds a clientele of loyal customers who choose it again and again. A doctor develops her clientele over years as patients trust her care and keep returning.

Business owners pay close attention to their clientele because understanding who their customers are helps them serve those customers better. A toy store might notice its clientele is mostly grandparents shopping for gifts, so it starts offering gift-wrapping services. A music teacher might realize her clientele wants evening lessons, so she adjusts her schedule.

When someone says a restaurant has an “upscale clientele” or a “family-friendly clientele,” they're describing the type of customers who regularly visit. The nature of a business's clientele often shapes everything from prices to atmosphere to what products get stocked on the shelves.