balalaika - a stringed instrument that has triangular body and three strings

harp - a chordophone that has a triangular frame consisting of a sounding board and a pillar and a curved neck; the strings stretched between the neck and the soundbox are plucked with the fingers

lute - chordophone consisting of a plucked instrument having a pear-shaped body, a usually bent neck, and a fretted fingerboard

mandolin - a stringed instrument related to the lute, usually played with a plectrum

stringed instrument - a musical instrument in which taut strings provide the source of sound