Capability vs Effectiveness

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

 CapabilityEffectiveness
MeaningThe ability to do something.How well something works or succeeds.
CEFR levelC1C1
Part of speechnounnoun
Usage notesUse 'capability' in professional or academic contexts to discuss skills or potential. It's not commonly used in casual conversations.Used in both formal and informal contexts, often in discussions of strategies, programs, or methods. Avoid using in overly casual conversations.

Frequently asked questions: Capability vs Effectiveness

What's the difference between "Capability" and "Effectiveness"?

"Capability" means: The ability to do something. "Effectiveness" means: How well something works or succeeds.

When should I use "Capability" and "Effectiveness"?

They can all be used in everyday English.

Are "Capability" and "Effectiveness" the same CEFR level?

"Capability" is at C1, "Effectiveness" is at C1 on the CEFR scale.

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