The term 'VIOL' is related to musical instruments. The crossword solutions REBEC (5 letters), GAMBA (5 letters), VIOLONE (7 letters), and REBECK (6 letters) are all stringed instruments that are similar to the violin. The REBEC is a bowed string instrument that originated in the Middle East and was popular in Europe during the Middle Ages. The GAMBA is a six-stringed bass instrument that was popular in the Renaissance period. The VIOLONE is a large bass viola da gamba, which is a type of bowed string instrument. Finally, the REBECK is a medieval fiddle that was used in folk music.