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capability vs. ability

capability vs. ability: What's the difference?

Capability and ability have similar meanings, but capability is often associated with a particular competence or efficiency at a specific task. Ability is more basic, and often means the capacity to do something, regardless of quality.

capability

[ key-puh-bil-i-tee ]
noun,
  1. the quality of being capable; capacity; ability: His capability was unquestionable.
  2. the ability to undergo or be affected by a given treatment or action: the capability of glass in resisting heat.
  3. qualities, abilities, features, etc., that can be used or developed; potential: Though dilapidated, the house has great capabilities.

ability

[ uh-bil-i-tee ]
noun,
  1. power or capacity to do or act physically, mentally, legally, morally, financially, etc.
  2. competence in an activity or occupation because of one's skill, training, or other qualification: the ability to sing well.
  3. talents; special skills or aptitudes: Composing music is beyond his abilities.