It is the violin.
The Double Bass or the Contrabass is the lowest member of the string family.
The violin is the smallest member of the string family.
The highest instrument of the string family is the violin.
Those without strings, mainly woodwinds, brass and percussion.The piano is in reality a member of the percussion family primarily because of the manner in which is required to produce sound, but has been "accepted" as being part of the string family in many circles.
It certainly is. They are both in the string family and the cellos,and the basses are too they are all related. They are certainly not. Violins are from the viola Family, meaning little viola, and the guitar is from the lute family, named after an english medieval expression for women of easy virtue. Just because they have strings it doesn't mean they are from the same family.
The oldest member of the string family is the harp.
Bass
The highest instrument of the string family is the violin.
String
Strings.
the string family
A "trio" ... consists of string instruments plus a piano. The piano is a member of the percussion family.