[W/K] :: Sounding post

  Sounding \Sound"ing\, n.
     1. The act of one who, or that which, sounds (in any of the
        senses of the several verbs).
        [1913 Webster]
  
     2. (Naut.) [From Sound to fathom.]
        (a) measurement by sounding; also, the depth so
            ascertained.
        (b) Any place or part of the ocean, or other water, where
            a sounding line will reach the bottom; -- usually in
            the plural.
        (c) The sand, shells, or the like, that are brought up by
            the sounding lead when it has touched bottom.
            [1913 Webster]
  
     Sounding lead, the plummet at the end of a sounding line.
        
  
     Sounding line, a line having a plummet at the end, used in
        making soundings.
  
     Sounding post (Mus.), a small post in a violin,
        violoncello, or similar instrument, set under the bridge
        as a support, for propagating the sounds to the body of
        the instrument; -- called also sound post.
  
     Sounding rod (Naut.), a rod used to ascertain the depth of
        water in a ship's hold.
  
     In soundings, within the eighty-fathom line. --Ham. Nav.
        Encyc.
        [1913 Webster]