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customer

American  
[kuhs-tuh-mer] / ˈkʌs tə mər /

noun

  1. a person who purchases goods or services from another; buyer; patron.

  2. Informal. a person one has to deal with.

    a tough customer; a cool customer.


customer British  
/ ˈkʌstəmə /

noun

  1. a person who buys

  2. informal a person with whom one has dealings

    a cool customer

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

customer Idioms  

Etymology

Origin of customer

First recorded in 1400–50; late Middle English; custom + -er 1; compare Middle English customer “collector of customs,” from Anglo-French; Old French costumier, cognate with Medieval Latin custumārius; see customary

Explanation

A customer is anyone paying for a good or service. Without customers, businesses would go out of business. When you're paying for just about anything, you're a customer. People shopping at the grocery store, sitting in coffee shops, going to movies, and buying DVDs online are all customers. The point of advertising is to drum up new customers for a business. There's a cliché that "The customer is always right," which is obviously not true, but shows how businesses try to make customers happy. They'd better. Without customers, any business is in deep trouble.

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Vocabulary lists containing customer

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In this case, a bag of lemons costs $3.99, and, though Customer A and B are both loyalty program members, only Customer B is given a $1 off coupon.

From Salon • May 18, 2026

Customer Dina Ramona Silva happened upon the Plus Bus’ initial Glassell Park location after moving to L.A. in 2015.

From Los Angeles Times • Apr. 22, 2026

The company highlighted the capabilities at its Customer Edge Summit.

From Barron's • Apr. 13, 2026

Customer defection is of increasing concern for both airline management and shareholders, according to ASCI.

From MarketWatch • Apr. 6, 2026

Dear Customer, We are returning this check to you because your account is overdrawn and the transaction cannot be honored.

From "Schooled" by Gordon Korman

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