Bow (music)
People who learn to play the violin, viola, violoncello, and double bass spend a very long time learning the technique of bowing.  They have to learn to control the bow so that it makes a lovely sound on the string.  They learn to control the bow with strong fingers, but never to hold the bow tightly.  Sometimes they are asked to pluck the string instead of bowing it.  This is called “pizzicato”.