Capacity

The power of receiving or containing; extent of room or space; passive power; -- used in reference to physical things.

The power of receiving and holding ideas, knowledge, etc.; the comprehensiveness of the mind; the receptive faculty; capability of undestanding or feeling.

Ability; power pertaining to, or resulting from, the possession of strength, wealth, or talent; possibility of being or of doing.

Outward condition or circumstances; occupation; profession; character; position; as, to work in the capacity of a mason or a carpenter.

Legal or noral qualification, as of age, residence, character, etc., necessary for certain purposes, as for holding office, for marrying, for making contracts, will, etc.; legal power or right; competency.

The maximum amount that something can contain or accomplish

the power to learn or retain knowledge; in law, the ability to understand the facts and significance of your behavior

(computer science) the amount of information (in bytes) that can be stored on a disk drive; "the capacity of a hard disk drive is usually expressed in megabytes"

the maximum production possible; "the plant is working at 80 per cent capacity"

tolerance for alcohol; "he had drunk beyond his capacity"

capability to perform or produce; "among his gifts is his capacity for true altruism"; "limited runway capacity"; "a great capacity for growth"

the susceptibility of something to a particular treatment; "the capability of a metal to be fused"

a specified function; "he was employed in the capacity of director"; "he should be retained in his present capacity at a higher salary"