Pronunciation: (vol'yOOm, -yum), [key]
1. a collection of written or printed sheets bound together and constituting a book.
2. one book of a related set or series.
3. a set of issues of a periodical, often covering one year.
4. Hist.a roll of papyrus, parchment, or the like, or of manuscript.
5. the amount of space, measured in cubic units, that an object or substance occupies.
6. a mass or quantity, esp. a large quantity, of something: a volume of mail.
7. amount; total: the volume of sales.
8. the degree of sound intensity or audibility; loudness: to turn up the volume on a radio.
9. fullness or quantity of tone.
10. speak volumes,
a. to be very evident or significant: Her testimony spoke volumes.
b. to be expressive or meaningful: Your eyes speak volumes.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.