Acknowledge vs Thank

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

 AcknowledgeThank
MeaningTo accept or notice something.To say you are grateful for something.
CEFR levelB2A1
Part of speechverbverb
Usage notesUse 'acknowledge' when formally recognizing someone's contribution or existence. Avoid in overly casual contexts.Use 'thank' in everyday situations when expressing gratitude. More formal situations might use 'express gratitude.' Avoid using it in contexts where a more formal tone is required.

Frequently asked questions: Acknowledge vs Thank

What's the difference between "Acknowledge" and "Thank"?

"Acknowledge" means: To accept or notice something. "Thank" means: To say you are grateful for something.

When should I use "Acknowledge" and "Thank"?

They can all be used in everyday English.

Are "Acknowledge" and "Thank" the same CEFR level?

"Acknowledge" is at B2, "Thank" is at A1 on the CEFR scale.

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