noun
customer
KUHS-tuh-mer/ˈkʌstəmər/
A person dealing with a supplier of goods or services.
The customer chooses vegetables and pays the vendor at the produce stall.

Etymology
The connection to habit is repeat business: a customer was someone who customarily bought from the same tradesman or guild. The buyer sense no longer requires that regular relationship.
In context
Essential transactions had to pass through enough of that chain for the goods to reach the customer.
More examples
- The cafe offers regular customers a discount.
- As a bank customer, you can check your balance online.
- Please contact customer service if your order arrives damaged.
Forms
customer · customers