The term 'plucked strings' refers to instruments that are played by plucking the strings, such as harps and HARP. A HARP is a stringed instrument consisting of a triangular frame open on both sides, with strings of varying lengths running from the top to the base. The strings are plucked with the fingers or a plectrum. A HARP is typically used in classical, folk, and jazz music. A HARP has five letters, while a HARP has four letters.