[W/K] :: Sound boarding

  Sound \Sound\, n. [OE. soun, OF. son, sun, F. son, fr. L. sonus
     akin to Skr. svana sound, svan to sound, and perh. to E.
     swan. Cf. Assonant, Consonant, Person, Sonata,
     Sonnet, Sonorous, Swan.]
     1. The peceived object occasioned by the impulse or vibration
        of a material substance affecting the ear; a sensation or
        perception of the mind received through the ear, and
        produced by the impulse or vibration of the air or other
        medium with which the ear is in contact; the effect of an
        impression made on the organs of hearing by an impulse or
        vibration of the air caused by a collision of bodies, or
        by other means; noise; report; as, the sound of a drum;
        the sound of the human voice; a horrid sound; a charming
        sound; a sharp, high, or shrill sound.
        [1913 Webster]
  
              The warlike sound
              Of trumpets loud and clarions.        --Milton.
        [1913 Webster]
  
     2. The occasion of sound; the impulse or vibration which
        would occasion sound to a percipient if present with
        unimpaired; hence, the theory of vibrations in elastic
        media such cause sound; as, a treatise on sound.
        [1913 Webster]
  
     Note: In this sense, sounds are spoken of as audible and
           inaudible.
           [1913 Webster]
  
     3. Noise without signification; empty noise; noise and
        nothing else.
        [1913 Webster]
  
              Sense and not sound . . . must be the principle.
                                                    --Locke.
        [1913 Webster]
  
     Sound boarding, boards for holding pugging, placed in
        partitions of under floors in order to deaden sounds.
  
     Sound bow, in a series of transverse sections of a bell,
        that segment against which the clapper strikes, being the
        part which is most efficacious in producing the sound. See
        Illust. of Bell.
  
     Sound post. (Mus.) See Sounding post, under Sounding.
        [1913 Webster]