The term FINGERBOARD DIVIDER is composed of two words, the first being FRET, which is a four-letter word. FRET is a thin strip of wood that is placed along the neck of a stringed instrument, such as a guitar or violin, to divide the fingerboard into segments for playing individual notes. Fingerboard divider is a tool used to accurately measure and mark the frets on an instrument. It is typically made of metal and has a series of notches that can be adjusted to fit the width of the FRET.