Fulfil vs Realize

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

 FulfilRealize
Meaningto make something happen or to do what is requiredTo understand something clearly.
CEFR levelB2A2
Part of speechverbverb
Usage notesUse 'fulfil' in formal or neutral contexts, such as completing a promise or a requirement. Avoid in casual conversations where simpler terms like 'do' or 'complete' might fit better.Use 'realize' when you come to a new understanding or awareness of something. It's neutral and suitable for both spoken and written contexts. Avoid using it in very formal writing where 'become aware of' might be preferred.

Frequently asked questions: Fulfil vs Realize

What's the difference between "Fulfil" and "Realize"?

"Fulfil" means: to make something happen or to do what is required "Realize" means: To understand something clearly.

When should I use "Fulfil" and "Realize"?

They can all be used in everyday English.

Are "Fulfil" and "Realize" the same CEFR level?

"Fulfil" is at B2, "Realize" is at A2 on the CEFR scale.

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