What is another word for client?

There are many synonyms for "client", depending on the context. Here are some options:

General:

* Customer

* Patron

* User

* Buyer

* Purchaser

* Subscriber

* Account

* Constituent (for legal or political clients)

More specific:

* Patient (for medical clients)

* Student (for educational clients)

* Guest (for hospitality clients)

* Principal (for legal clients)

* Employer (for freelance clients)

Formal:

* Customer

* Principal

* Patron

Informal:

* Customer

* User

* Buyer

The best synonym will depend on the specific situation and the desired tone.