the quality of being able to perform; a quality that permits or facilitates achievement or accomplishment

lack of physical or intellectual ability or qualifications

properly or sufficiently qualified or capable or efficient

the quality of being qualified

(linguistics) a speaker's implicit, internalized knowledge of the rules of their language (contrasted with linguistic performance)

the quality of having great facility and competence

The condition of being adapted for seizing or grasping, especially by wrapping around.