We don't have synonyms for matachina yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are matching, matachin and tachina.
(n) :
Alternative form of matachin (“type of dance”). [A carnivalesque dance with swords and bucklers, traditionally performed in Spain by costumed troupes.]
(n) :
Alternative form of matachin (“type of dance”). [A carnivalesque dance with swords and bucklers, traditionally performed in Spain by costumed troupes.]