Well, here are a few which come to mind:
Modern orchestral: violin, viola, cello, double bass.
Once obsolete, but now enjoying a renaissance: the viol family.
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Note: that while the instruments below have strings they do not form part of the stringed instrument section of an orchestra - they are regarded as percussion instruments.
piano, harpsichord, clavichord, spinet, virginal, Zither, Dulcimer, harp, the guitar (and its predecessor the vilhuela), and the hurdy-gurdy.
The trombone isn't a stringed instrument. so it has a lot of things that stringed instruments don't have. Like a mouthpiece.
Guitar ,violin, cello, viola ,bass ,double bass, harp, and lyre.
They are both part of the stringed instruments.
There are a few different stringed instruments that might be played at a square dance. These instruments include the banjo, violin, guitar, and mandolin.
Brass instruments such as the trumpet, cornet, French horn and tuba.