publication vs volume

publication and volume both are nouns.

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

As nouns, volume is a hyponym of publication; that is, volume is a word with a more specific, narrower meaning than publication:

publication (noun)	volume (noun)
the business of issuing printed matter for sale or distribution	physical objects consisting of a number of pages bound together
the act of issuing printed materials	the magnitude of sound (usually in a specified direction)
the communication of something to the public; making information generally known	the property of something that is great in magnitude
a copy of a printed work offered for distribution	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