Physical power, whether bodily or mental; natural or acquired; force of understanding; skill in arts or science. Ability is active power, or power to perform; as opposed to capacity, or power to receive. In the plural, abilities is much used in a like sense; and also for faculties of the mind, and acquired qualifications.

Riches, wealth, substance, which are the means, or which furnish the power, of doing certain acts. They gave after their ability to the work. Ezra 2:69.

Moral power, depending on the will - a metaphysical and theological sense.

Civil or legal power, the power or right to do certain things, as an War a: ability to transfer property or dispose of effects - ability to inherit. It is opposed to disability.