We don't have synonyms for cobza yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are colza, cobia and cobra.
(n) :
A lute-like stringed instrument (chordophone), with four strings in double courses, played with a plectrum, and most associated with the traditional music of Romania.
(n) :
A lute-like stringed instrument (chordophone), with four strings in double courses, played with a plectrum, and most associated with the traditional music of Romania.