bulk, mass, volume - the property of something that is great in magnitude; "it is cheaper to buy it in bulk"; "he received a mass of correspondence"; "the volume of exports" --2is a kind ofmagnitude --2has particulars: dollar volume, turnover
book, volume - physical objects consisting of a number of pages bound together; "he used a large book as a doorstop" --3is a kind ofproduct, production --3has parts: binding, book binding, cover, back --3has particulars: