sounder

noun9

1. •
   Something or someone who makes a sound.
2. •
   An instrument used in telegraphy in place of a register, the communications being read by sound.
3. •
   A device for making soundings at sea.
4. •
   A person who takes soundings.
5. •
   A fishfinder.
6. •
   A group of wild boar.

   • Members of a sounder share a home range, and often move around their home range in a group (feral pigs, Gabor et al.,1999). — 2008
7. •
   A young boar.
8. •
   Synonym of sting (“brief musical sequence in television etc.”).
9. •
   [plural only] (old-fashioned) A stethoscope.