Confirm vs Ensure

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

 ConfirmEnsure
MeaningTo say that something is true or to make sure of it.To make sure something happens or is true.
CEFR levelB1B2
Part of speechverbverb
Usage notesUse 'confirm' in both formal and informal contexts, such as meetings or casual conversations. It's appropriate when verifying information or giving approval.Use 'ensure' when you want to guarantee an outcome or confirm safety. It's appropriate in both spoken and written contexts, though more commonly in formal writing. Avoid using 'ensure' in casual conversations where simpler words like 'make sure' might be more fitting.

Frequently asked questions: Confirm vs Ensure

What's the difference between "Confirm" and "Ensure"?

"Confirm" means: To say that something is true or to make sure of it. "Ensure" means: To make sure something happens or is true.

When should I use "Confirm" and "Ensure"?

They can all be used in everyday English.

Are "Confirm" and "Ensure" the same CEFR level?

"Confirm" is at B1, "Ensure" is at B2 on the CEFR scale.

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