Capability vs Power

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

Capability

Top 2,000 (common)C1noun

Power

Top 1,000 (very common)A2noun
Most common: Power
 CapabilityPower
Pronunciation🇬🇧 /["/ˌkeɪpəˈbɪləti/"]/🇺🇸 /["/ˌkeɪpəˈbɪləti/"]/🇬🇧 /["/ˈpaʊə(r)/"]/🇺🇸 /["/ˈpaʊər/"]/
MeaningThe ability to do something.The ability to do something or to control people or things.
ExampleHer capability as a leader impressed everyone at the meeting.The power of the wind can generate electricity.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)
CEFR levelC1A2
Part of speechnounnoun
Collocationsadvanced, enhanced, limited, demonstrate, have, possess, beyond somebody’s capability, within somebody’s capability, capability for, advanced, enhanced, limited, demonstrate, have, possess, beyond somebody’s capability, within somebody’s capability, capability forabsolute, ultimate, considerable, come to, rise to, assume, be concentrated in (the hands of somebody/​something), flow from somebody/​something, lie with somebody/​something, struggle, relations, structure, in power, in somebody’s power, power of, abuse of power, the balance of power, a bid for power, absolute, ultimate, considerable, come to, rise to, assume, be concentrated in (the hands of somebody/​something), flow from somebody/​something, lie with somebody/​something, struggle, relations, structure, in power, in somebody’s power, power of, abuse of power, the balance of power, a bid for power, full, reduced, electric, generate, produce, provide (somebody/​something with), drive something, run something, go off, cable, grid, line, power for, a source of power, full, reduced, electric, generate, produce, provide (somebody/​something with), drive something, run something, go off, cable, grid, line, power for, a source of power, awesome, great, real, awesome, great, real, air, combat, military, have, possess, use, beyond somebody/​something’s power, in somebody’s power, within somebody’s power, at the height of your powers, at the peak of your powers, at the zenith of your powers, air, combat, military, have, possess, use, beyond somebody/​something’s power, in somebody’s power, within somebody’s power, at the height of your powers, at the peak of your powers, at the zenith of your powers, air, combat, military, have, possess, use, beyond somebody/​something’s power, in somebody’s power, within somebody’s power, at the height of your powers, at the peak of your powers, at the zenith of your powers, absolute, ultimate, considerable, come to, rise to, assume, be concentrated in (the hands of somebody/​something), flow from somebody/​something, lie with somebody/​something, struggle, relations, structure, in power, in somebody’s power, power of, abuse of power, the balance of power, a bid for power, great, major, world, air, combat, military, have, possess, use, beyond somebody/​something’s power, in somebody’s power, within somebody’s power, at the height of your powers, at the peak of your powers, at the zenith of your powers, air, combat, military, have, possess, use, beyond somebody/​something’s power, in somebody’s power, within somebody’s power, at the height of your powers, at the peak of your powers, at the zenith of your powers, absolute, ultimate, considerable, come to, rise to, assume, be concentrated in (the hands of somebody/​something), flow from somebody/​something, lie with somebody/​something, struggle, relations, structure, in power, in somebody’s power, power of, abuse of power, the balance of power, a bid for power
Antonymsincapability, inabilityweakness, ineffectiveness
Common mistakesConfusing with 'capacity' which refers to volume or quantity., Using it as a verb instead of a noun., Misplacing the emphasis in pronunciation.'Power' as a verb — learners often mistakenly use 'power' when they mean to say 'empower'., Confusing 'power' with 'might', as they have different nuances., Misusing 'power' in phrases, e.g., 'the power of' requires a specified noun.
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. In discussions about politics or leadership, 'power' often has a weighty connotation, while in casual settings it might refer to electricity or strength. Avoid using it in overly casual contexts when discussing serious topics.

Frequently asked questions: Capability vs Power

What's the difference between Capability and Power?

Capability: The ability to do something. Power: The ability to do something or to control people or things.

Which is more common: Capability and Power?

Power is the most common in everyday English.

Are Capability and Power the same CEFR level?

Capability: C1, Power: A2 on the CEFR scale.

Can I use Capability and Power interchangeably?

Not always. Capability and Power are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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