If you're country, it's a fiddle. Wars have been fought over this
You know the difference between a violin and a fiddle?
Nobody cares if you spill beer on a fiddle.
No, I mean in Band in a Box, it’s called a violin. By the way, violin is simply more specific that fiddle: Violas and viols were also called fiddles; Viols are four-to-six-stringed instruments that are much like with frets.