capacious vs capacity

capacious is not a noun while capacity is a noun.

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

capacious (noun)	capacity (noun)
	the maximum production possible
	a specified function
	capability to perform or produce
	tolerance for alcohol
	the power to learn or retain knowledge; in law, the ability to understand the facts and significance of your behavior
	an electrical phenomenon whereby an electric charge is stored
	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

capacious (adjective)	capacity (adjective)
large in capacity