Client is a fancier term. It implies a long-term relationship involving professional services. eg A lawyer or an architect has clients.
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Client is a fancier term. It implies a long-term relationship involving professional services.
eg A lawyer or an architect has clients. (However, a doctor has patients.)
eg A grocery store or a restaurant has customers, not clients.
I do home improvement work for a living, and I often can decide whether I should use "customer" or "client". Sometimes I use one and sometimes I use the other. So that should tell you there's some obvious overlap in their usage. "Client" sounds more professional and possibly implies a longer lasting relationship.
Having done computer work in the past, I can tell you that "client"