Basically the same meaning but client is more professional. For a example: A man buys something from a shop. He is a customer. A man pays a lawyer to defend him in court. The man is the lawyer's client.

Client is used with professions and certain skilled trades where the worker-entrepreneur gives the person direct personal attention, and it also can imply a more ongoing, established relationship.

A customer can buy something from a store just once, and be only a face and wallet in a line.

A client has purchased personalized services, including the time of the professional or tradesperson.

A lawyer has clients. So do a hairdresser and a manicurist.

If someone regularly buys things from the same store, they are "repeat customers" or "regular customers".

A customer is someone who buys goods or services from a store or business. The word "client" can also mean "customer," according to most dictionaries, but it has a separate definition as someone who receives professional services.

I agree with the above comment. A client is a customer (someone who buys your goods and services), but one that you have an ongoing, personal relationship with. It also depends a bit on the type of business. For general retail, we would refer to even loyal customers as just "customers"; however for consulting services, they would always be "clients".

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