a person or organization that buys goods or services

a client, someone receiving services or products in a business context

ग्राहक

English Usage: The customer was satisfied with the consulting services.

Hindi Usage: ग्राहक परामर्श सेवाओं से संतुष्ट था।

to serve or act as a customer (rare usage)

ग्राहक बनना

English Usage: The company aims to customer its clients better.

Hindi Usage: कंपनी अपने ग्राहकों के प्रति बेहतर सेवाएँ देने का लक्ष्य रखती है।