noun
plural -umes
[noncount] :the amount of sound that is produced by a television, radio, stereo, etc.
[count] :a knob, lever, etc., that controls the amount of sound something makes
an amount of something [count]
the amount of space that is filled by something [count]
[count] a book
a book that is part of a series or set of books
one of the magazines, newspapers, etc., in a series
speak volumes
to provide a lot of information about something :to show something very clearly