Suitableness.
The quality or state of being able; capacity to do or of doing something; having the necessary power.
This phone has the ability to have its software upgraded wirelessly.
The legal wherewithal to act.
Physical power.
Financial ability.
A unique power of the mind; a faculty.
A skill or competence in doing; mental power; talent; aptitude.
She has an uncanny ability to defuse conflict.