Certain vs Definite

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

 CertainDefinite
Meaningsure, without any doubtClear and certain.
CEFR levelA2B1
Part of speechadjectiveadjective
Usage notesUse 'certain' when you want to express confidence in something. It's appropriate in both spoken and written English, but avoid it in very formal contexts where 'specific' or 'determined' may be better.Use 'definite' when you want to express something that is clearly stated or decided. It is appropriate in both spoken and written contexts but may sound overly formal in casual conversations.

Frequently asked questions: Certain vs Definite

What's the difference between "Certain" and "Definite"?

"Certain" means: sure, without any doubt "Definite" means: Clear and certain.

When should I use "Certain" and "Definite"?

They can all be used in everyday English.

Are "Certain" and "Definite" the same CEFR level?

"Certain" is at A2, "Definite" is at B1 on the CEFR scale.

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