sounder 1
/sown"deuhr/ , n.
1. a person or thing that makes a sound or noise, or sounds something.
2. Telegraphy. an instrument for receiving telegraphic impulses that emits the sounds from which the message is read.
[ 1585-95; SOUND 1 + -ER 1 ]
sounder 2
/sown"deuhr/ , n.
a person or thing that sounds depth, as of water.
[ 1565-75; SOUND 3 + -ER 1 ]