voluminous vs volume

voluminous is not a noun while volume is a noun.

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

voluminous (noun)	volume (noun)
	physical objects consisting of a number of pages bound together
	the magnitude of sound (usually in a specified direction)
	the property of something that is great in magnitude
	a publication that is one of a set of several similar publications
	the amount of 3-dimensional space occupied by an object
	a relative amount

voluminous (adjective)	volume (adjective)
large in number or quantity (especially of discourse)
marked by repeated turns and bends
large in volume or bulk