ability

n. power, capacity, capability; skill, talent, aptitude, mental skill or physical power of a person to do something

Ability may be:aptitudeability to payIntelligencephysical abilityskillexpertiseAbility may also refer to:Ability score, in role-playing gamesAbility Plus Software, makers of the office suite Ability OfficeAbility groupingABILITY MagazineAbility Magazine
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Noun
1. the quality of being able to perform; a quality that permits or facilitates achievement or accomplishment
(antonym) inability, unfitness
(hypernym) quality
(hyponym) adaptability
(attribute) able
2. possession of the qualities (especially mental qualities) required to do something or get something done; "danger heightened his powers of discrimination"
(synonym) power
(antonym) inability
(hypernym) cognition, knowledge, noesis
(hyponym) know-how
(attribute) able

(n.)
The quality or state of being able; power to perform, whether physical, moral, intellectual, conventional, or legal; capacity; skill or competence in doing; sufficiency of strength, skill, resources, etc.; -- in the plural, faculty, talent.
  

noun
being able to do something