W: (n) sound [Related to: sound] (the audible part of a transmitted signal) "they always raise the audio for commercials"
W: (n) sound [Related to: sound] (the sudden occurrence of an audible event) "the sound awakened them"
W: (n) sound [Related to: sound] (mechanical vibrations transmitted by an elastic medium) "falling trees make a sound in the forest even when no one is there to hear them"
W: (n) sound [Related to: sound] (the particular auditory effect produced by a given cause) "the sound of rain on the roof"; "the beautiful sound of music"