capacity vs volume

capacity and volume both are nouns.

Word	Noun	Adjective	Verb	Adverb
capacity	Yes	No	No	No
volume	Yes	No	No	No

As nouns, volume is a hypernym of capacity; that is, volume is a word with a broader meaning than capacity:

capacity (noun)	volume (noun)
the maximum production possible	physical objects consisting of a number of pages bound together
a specified function	the magnitude of sound (usually in a specified direction)
capability to perform or produce	the property of something that is great in magnitude
tolerance for alcohol	a publication that is one of a set of several similar publications
the power to learn or retain knowledge; in law, the ability to understand the facts and significance of your behavior	the amount of 3-dimensional space occupied by an object
an electrical phenomenon whereby an electric charge is stored	a relative amount
the amount that can be contained
(computer science) the amount of information (in bytes) that can be stored on a disk drive
the susceptibility of something to a particular treatment