Definition of “ability” - Learner’s Dictionary

ability

noun [ C, U ] us uk /əˈbɪləti/
Extra Examples
The children are grouped according to their ability.The ability to speak English is a skill prized by many employers.proven abilityI have some doubts about his ability to do the job.verbal ability

B1 the physical or mental skill or qualities that you need to do something:

[ + to do sth ] He had the ability to explain things clearly.
The report questions the technical ability of the staff.
→ Opposite inability → Compare disability

(Definition of “ability” from the Cambridge Learner's Dictionary © Cambridge University Press)