The term 'HARP' can be found in four different crossword solutions: harmonica (9 letters), LYRE (4 letters), trigon (6 letters), and AEOLIAN (7 letters). A harmonica is a small, wind instrument consisting of a series of metal reeds held in a frame. A LYRE is an ancient stringed instrument with a yoke-shaped body and two curved arms connected by a crossbar. A trigon is a three-sided musical instrument that produces sound when struck. An AEOLIAN harp is a stringed instrument that produces sound when the wind passes through its strings.