Client vs User

When to use each in English, with meaning, register, and examples.

 ClientUser
MeaningA person or company that buys services.A person who uses something, often technology or services.
CEFR levelB1A2
Part of speechnounnoun
Usage notesUsed in business contexts; suitable for both informal and formal situations. Avoid using in casual conversations unrelated to business.Commonly used in technology contexts. Use 'user' when discussing people who engage with software, websites, or services. Avoid using it in very formal situations.

Frequently asked questions: Client vs User

What's the difference between "Client" and "User"?

"Client" means: A person or company that buys services. "User" means: A person who uses something, often technology or services.

When should I use "Client" and "User"?

They can all be used in everyday English.

Are "Client" and "User" the same CEFR level?

"Client" is at B1, "User" is at A2 on the CEFR scale.

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