Sound \Sound\, v. t. [imp. & p. p. Sounded; p. pr. & vb. n.
   Sounding.] [F. sonder; cf. AS. sundgyrd a sounding rod,
   sundline a sounding line (see Sound a narrow passage of
   water).]
   1. To measure the depth of; to fathom; especially, to
      ascertain the depth of by means of a line and plummet.
      [1913 Webster]

   2. Fig.: To ascertain, or try to ascertain, the thoughts,
      motives, and purposes of (a person); to examine; to try;
      to test; to probe.
      [1913 Webster]

            I was in jest,
            And by that offer meant to sound your breast.
                                                  --Dryden.
      [1913 Webster]

            I've sounded my Numidians man by man. --Addison.
      [1913 Webster]

   3. (Med.) To explore, as the bladder or urethra, with a
      sound; to examine with a sound; also, to examine by
      auscultation or percussion; as, to sound a patient.
      [1913 Webster]